libpacklib1-dev 20061220+dfsg3-2 / usr / include / hbook.car

+TITLE.
HBOOK    4.24/00  05/05/95  11.48.44  PROGRAM LIBRARY HBOOK  = Y250
+PATCH,$VERSION.
+DECK,V4_24.
*CMZ :          24/10/95  14.32.46  by  Julian Bunn
*-- Author :    Unknown   05/05/95
*
* 24/10/95  14.32.19
*
* Remove redundant option in HRENID
*
* 11/10/95  19.56.41
*
* Correct bug in HFILPR that was causing X values equal to the
* end of the scale not to be filled in the overflow bin correctly.
*
* 11/10/95  17.51.27
*
* Modify HUWFUN so that option I does not cause calls to HBNAME to appear.
*
* 26/09/95  11.16.42
*
* Correction in hoper1 which previously was accessing non-existant
* error banks for some histogram operations. (Sent by Mike Redmond)
*
* Removal of trigraph ???' in routines HLATTR HLNEXT and HLNXTG1
*
* Correction in HMCMLL for wrong number of args in call to MNEXCM
*
* 30/06/95
*
* Correction by Rene in HBIN for "big integers".
*
* 21/06/95
*
* Add test program for FPCLASSC patch. New directory TESTS for HBOOK
* test programs ...
*
* 17/05/95
*
* Mod to HMDIR so that identically named sub-directories are not
* created in memory.
*
* 16/05/95  10.30.55
* Mods in HMINIM and HMAXIM to reset the min and the max when
* the min is greater than the max for 2d histos (it was implemented
* only for 1D).
*
* 05/05/95  14.57.05
* FPCLASSC selected in *HBOOK
*
*::>          VERSION  4.24/00   05/05/95 11.48.44
*
*
*    New patch FPCLASSC by Francois Dardare. This interfaces to the
*    system routines on the various platforms that identify the
*    IEEE NaNs (where appropriate), and classifies them in a general
*    way. The routines are called in HFILL, HFN and HFNT2 to check
*    user arguments, and warnings are issued where appropriate.
*
*    New routine HNFORM for assiting users in creating the character
*    string that describes CW nTuple variables that is used as an
*    argument to HBNAME or HBNAMC.
*
+DECK,V4_23.
*CMZ :          27/07/95  17.22.32  by  Julian Bunn
*-- Author :    Rene Brun   05/11/94
*
*::>          VERSION  4.23/02   05/05/95 11.19.28
*
*
*::>          VERSION  4.23/01   22/02/95 14.34.06
*
*    New user routines HIJE and HXYE for returning errors on cells in
*    2D histograms a la HIE,HXE.
*
*    New routine HBVERS in the C patch, that returns the version string.
*
*    Some error checking and extra calls to HBUG in the HFNT tree.
*
*    Modification to HCX to fix a bug produced when the routine was
*    called with option 2 (get error) for a histogram without the
*    required bank.
*
*    Extra argument IOPT added to HCXY in order to allow the caller
*    to specify whether the contents (IOPT=1) or the error (IOPT=2)
*    on the given cell is returned.
*
*    Bug corrected in HROUT. Problem was appearing in case of many
*    subdirectories. Variable NLCDIR was not correctly set when returning
*    to the parent level.
*
*    Deck HNTDUP: declare IDUM to be REAL*8 to make it double-word aligned.
*
*    Introduce DOUBLE PRECISION in HCX for Profile histograms
*
*    Adjust HREBIN to allow for non-equiwidth bins.
*
*::>          VERSION  4.23/00   05/11/94 09.36.29
*
*    HLDIR with CHOPT='N' works now also for disk directories.
*
*    Protect HMINUT when option Z is given (LINEAR was set to zero)
*
*    Protection in HFN in case HGIVEN is called immediatly before.
*       LCONT pointer is now always recomputed.
*
*    Implement ../ style in HPATH.
+DECK,V4_22.
*CMZ :  4.22/14 14/10/94  12.20.44  by  Rene Brun
*-- Author :    Rene Brun   30/03/94
*
*::>          VERSION  4.22/14   14/10/94 12.20.44
*
*    Due to some early design mistake PAW expects all character columns to
*    be returned in character*32 variables instead of in variables of the
*    original size. For single character variables this was fine, however
*    character array columns were not restored correctly (unless they had
*    an original size of 32). To fix this HBOOK has to know if the Ntuple
*    is read back by PAW. Bit 3 in the status word of the first block is
*    set in this case (in HBNAM). HGNT2 and HGNTF check this bit in case
*    of character arrays. Routines modified: HBNAM, HGNT2, HGNTF, HNTGET,
*    HRIN.
*
*::>          VERSION  4.22/13   28/09/94 08.40.30
*
*    Change in HBUG. When LERR.LE.0 error messagse are not printed.
*
*    HNTDEL: fix UHTOC call (don't multiply NCHRZ by 4).
*
*    Change default quota to 32000 records in HRFILE
*
*::>          VERSION  4.22/12   19/09/94 11.16.36
*
*    Move VIDQQ sattement in HLIMAP to avoid problem with F2C.
*
*::>          VERSION  4.22/11   05/09/94 13.36.29
*
*    Many decks indented.
*
*    New option in HLIMAP.
*    When the first parameter LIMIT=0, an existing shared memory
*    is attached as the current directory. In this case, HLIMIT must have been
*    called before.
*
*    Changes in HDIFF to solve numerical problems (precision).
*
*    Extend range of formats in HINDEX and HINPRX.
*
*    Bug corrected in HRESETM1 and HREZ0M in case of profile histograms
*    or histograms with error bars (bug reported by W.Brueckner)
*
*    Protection in HFCXY for large real numbers
*
*::>          VERSION  4.22/10   04/08/94 14.58.02
*
*    Routine HALLOC:
*    Free all Ntuple buffers or all buffers belonging to Ntuples in
*    the same unit.
*    If lun<0 free all Ntuple buffers that are in use (do this from an
*    exception handler in case the filling of the buffers was
*    interrupted).
*
*    Modification in HREBIN. If IFIRST<0 then do not normalize Y values
*
*    Bug corrected in HMINUT when option 'E' is specified.
*      NARGS must be set to 0 before calling MNEXCM in this case.
*      (Problem reported by Marcos Dracos)
*
*    Profile histograms can be filled with weights (mods in HFILPF)
*
*::>          VERSION  4.22/09   27/07/94 18.45.44
*
*    Implement calculation of errors in HOPERA for 2-D histograms
*
*    Deck HALLOC: force refill of Ntuple cache also when event range changes.
*                 added new routine HBFREEC to free cache associated
*                 with chains.
*
*    Routine HBALLOC: pass also first event (to define event range).
*
*    Routine HGNT1: accepts dynamic buffer offsets as argument (used by
*    HGNTBF).
*
*    Routines HGNT, HGNTV, HGNTB: changed call to HGNT1 accordingly.
*
*    Routine HGNT2: check for the usage of the cache for each variable
*    instead of only once.
*
*    Routine HGNTBF: completely re-written. Does not read a whole column
*    in cache anymore. Is now a convenient front-end for HGNT2 with the
*    IVOFF cache offsets set.
*
*    New routine HCPOFF: copy cache offsets into an array IVOFF. This array
*    is used in case of chains in PAW to continue filling the cache in the
*    place where the last call to HGNTF stoped.
*
*::>          VERSION  4.22/08   15/07/94 09.31.43
*
*    Modify calling sequence of HNTDUP (new convention for NEWBUF)
*
*    New routine HBGMAX in HALLOC to return the maximum amount of memory
*    that may be malloced.
*
*    Protection in HSCR in file in READ only mode
*
*    New routine HCONVOL introduced (Per Steinar Iversen)
*    See comments in routine
*
*    Modify dummy calls to HFUNC,HSUPIM,HSUPIS to avoid intercompilation
*    analysis message on Alpha/VMS.
*
*::>          VERSION  4.22/07   28/06/94 17.44.26
*
*    New routine HMERGE(Nfiles,Files,Filout)
*    New Routine HMERGIN calls HMERGE
*
*::>          VERSION  4.22/06   28/06/94 08.25.18
*
*    Mods in HRFILE to take into account possible new option 'N' in RZMAKE
*
*    HRESET can reset ntuples
*    New routine HNTRSET called by HRESET for CWNtuples
*
*    Implement new option 'K' in HMINUT
*
*::>          VERSION  4.22/05   21/06/94 18.38.39
*
*    Deck HALLOC: fix in case malloc and realloc fail.
*
*    Routine HMERGE: need option X in HROPEN for auto-record length
*    detection to work on Alpha/OSF/VMS.
*
*    Routine HNTDUP: updated some comments.
*
*    Mods in HMINUT.
*    Set the FNIX and FEPS parameters in agreement with the MINUIT definition.
*    Defaults are unchanged. FNIX and FEPS can be modified via
*    the routine HSETPR or PAW command HSETPR.
*
*    New routine HBAR2 to store errors for 2-D histograms
*    Routines HF2,HPAKE,HUNPKE,HFITH1 modified in consequence
*
*    hfithc - protection against deviation being 0 is introduced
*
*    hminut - correction MINUIT save file ISAV=7
*
*    Protection in HNTNAM in case of misalignement (INTEGER*4 mixed
*    with REAL*8 variables in the same block).
*
*::>          VERSION  4.22/04   08/06/94 11.38.01
*
*    Routine HRENAME: works now also for CWN's.
*
*    Routine HBNT: in case of memory resident Ntuple set IQ(LCID+ZNCHRZ)=0.
*
*    Routine HUWFUN: cosmetic change.
*
*    New routine HNTDUP: duplicates a complete Ntuple header. Works for
*    CWN's as well as RWN's.
*
*    New routine HNTVDEF: returns a complete variable definition. Used
*    by HNTDUP (works for CWN's and RWN's).
*
*    New patch HMERGE: this patch contains the program HMERG that can merge
*    hbook files with identical objects. Histograms are added and
*    Ntuples are combined. Works for CWN's and RWN's.
*    HMERG is the main program (to be selected with option MAIN). It calls
*    the main control routine HMERGE (user callable).
*
*    Implement proposal from Stephane Coutu for the computation of errors
*    for profile histograms (see routine HBPROF)
*
*    Add TYPE declaration to several sequences
*
*    Changes in HIDOPT for option SHOW
*       Options PROS or PROE are displayed with option SHOW
*
*    Mods in HCX for the computation of errors for profile histograms.
*    With the previous versions, channels with one entry only had
*    an error=0. Now the error is teh sqrt(abs(content)).
*
*    Mystyping in HWPDCL  (PAWR8 instead of PAWCR8
*
*::>          VERSION  4.22/03   30/05/94 14.10.33
*
*    Routine HLNEXT supports RLOGIN directories
*
*    New routine HRENAME(ID,CHOLD,CHNEW) to rename columns of ntuples
*
*    Bug fixed in HCDIR in case of subdirectories (hrout, option T, then HREND)
*
*::>          VERSION  4.22/02   19/05/94 12.07.56
*
*    Several changes in patch HMCSTAT (Christine Beeston)
*    >1) I've fixed the bug with the number of entries - I now use HSUM instead
*    >of HNOENT to get the number of entries in a histogram, since including
*    >the underflows and overflows messes up the normalisation of the result.
*    >
*    >2) The user can now do multiple simultaneous fits (this was requested and
*    >seems useful) - to do this they must call HMCINI once for each set of
*    >histograms (each fit will have a data histogram and a set of monte carlo
*    >and weight histograms), and then
*    >HMCLNL must be called with the histogram identifiers and number of MC
*    >sources, as well as the fractions.
*    >
*    >HMCMLL already uses the new HMCLNL, I have left the old HMCLNL as HMCLNO,
*    >but will delete it in a couple of months.
*    >
*    >HMCINI and the new and old versions of HMCLNL both contain a banner
*    >announcing the change, as it's not backwards compatible.
*    >
*    >The weight histograms may be used for more than one of the
*    >fits if necessary - a check is made to make sure that they are not
*    >normalised more than once.
*
*    Minor change in HRENDC (nchmax=nchtop before loop)
*
*    Mods in HMINUT to compute an equivalent chisquare in case
*    of a log-likelihood fit
*
*    Bug fixed in HPAK in case weights <1.e-5 (number of entries was wrong)
*
*    Protection in HREND (NCHTOP was changed in the loop)
*
*::>          VERSION  4.22/01   07/04/94 09.04.32
*
*    Bug corrected in HFC1 in case of empty histograms with one bin only
*
*::>          VERSION  4.22/00   30/03/94 09.53.07
*
*    Bug fixed in HBOOKN (IQ(LCIDN+5) set to ID) for disk-resident tuples
*    This bug affected HBOOK jobs calling HPROJ1,HPROJ2, HGN or HGNF when
*    the ntuple header was not written to the file
*
+DECK,V4_21.
*CMZ :  4.21/13 17/03/94  10.36.58  by  Rene Brun
*-- Author :    Rene Brun   26/10/93
*
*::>          VERSION  4.21/13   17/03/94 10.36.57
*
*    Routine HNTDEL has been rewritten (cannot call HLOOP if HDELET is called)
*
*::>          VERSION  4.21/12   16/03/94 17.42.29
*
*    Correct bug in HNTDEL (see after HDELET the 2 lines commented)
*
*    Mods in HGIVE to return TITLE in case of ntuples
*
*    HRESET can reset memory resident ntuples
*
*::>          VERSION  4.21/11   12/03/94 15.48.34
*
*    New routine HRENDC
*    C I/O option implemented in HRFILE/HROPEN
*
*::>          VERSION  4.21/10   03/03/94 16.00.31
*
*    Maximum size of PAWCR4 increased from 5000 to 50000 words
*
*::>          VERSION  4.21/09   28/02/94 18.55.39
*
*    Option 'W' can be specified with option 'L' (log likelihood)
*     When option W is given, bins with errors=0 are not used in the fit.
*
*    New option 'Z' added in HFITV.
*    When option 'Z' is given, UFCN is the user fitting model
*    UFCN is a subroutine with the calling sequence:
*       Subroutine UFCN(N,X,Y,EY,NPAR,IFLAG,NPFITS)
*     where X(N),Y(N),EY(N) are the input vectors,
*           NPAR the number of parameters
*           NPFITS is an output parameter= Number of points used in the fit
*     The user must declare the common/HCFITD/FITPAD(24),FITFUN in UFCN
*
*    Change name of routine HBIBNIT to HBINIT1 to avoid clash with OPAL.
*
*    New routine HKIND returning the type of ID.
*
*    Bug corrected in HFITV: variable BINWID not set. (Reported by W.Mueller)
*
*    Argument missing in CALL MZPUSH in routine HRZKEY.
*
*    bug corrected in HGNTBF:
*      return as negative error the number of columns that we load from disk
*
*::>          VERSION  4.21/08   17/02/94 16.41.07
*
*    Change DLOG, DSIGN and DABS to SIGN,LOG and ABS in patch HMCSTAT.
*
*    New routines HKFILL, HKF1, HKFF1, HKF2, HKFF2, HKFILPF,HKFI1,HKFFI1.
*    These routines are fast filling routines called in teh context of PAW	
*    by the new COMIS translator facility.
*
*    Packing of floating points in CWN was not correct.
*    Fixes are in routines HFNT2, HGNT2, HGNTF, HNTNAM.
*
*    Set IQUEST(1) in HRZIN/HRZOUT.
*
*    Clear buffers in HREND.
*
*    Changes in HCDIR/HLDIR and HLNEXT for PIAF files.
*
*    Changes in HROUT and HNTRD:
*     Status word should be 0 when buffer comes from disk. However, in one
*     strange case (when coming from Piaf) it was not 0.
*
*    New routine HF1E(id,x,w,e) to fill a 1-D histogram
*        ID contents incremented by W
*        ID errors incremented by E**2
*
*    New routine HBOOKNC. This new routine has a calling sequence
*    very close to HBOOKN and creates a CWN instead.
*
*    Changes in pilot patch for WINNT and MSDOS versions.
*
*    Don't reset LBUF and LTMP in HCDIR and HROUT. Only update the
*    master pointer LBUFM and LTMPM. Other routines involved: HNBUF,
*    HNBUFD, HNBUFR, HNTMP, HNTMPD. This fixed a bug reported
*    by M. Dahlinger.
*
*    New routine HNTDEL. This routine is called by HREND and deletes
*    all Ntuple headers of non-memory resident Ntuples related to the
*    closed unit from //PAWC.
*
*    In HRZCD used sequence $CZSOCK.
*
*    Compute binomial errors in HOPERA if option B is given.
*
*    New routines HBONT,HFONT,HFONTR,HFONTCX to create and fill
*       an Omnipurpose Column-Wise-ntuple.
*    NEW sequence /HCBONT/
*
*    Optimisation in HRZKEY
*
*    In HNTNAM a protection was missing
*    and in HBSET ierror was not initialized
*
*::>          VERSION  4.21/07   20/12/93 13.01.27
*
*    Changes in HRDIR for Unix shared memory.
*    New routine HRDIRM in patch HMMAP called by HRDIR.
*
*    Bug corrected in HLATTR for global sections
*
*    Bug corrected in HBNT and HROUT for CWN memory-resident ntuples in
*    the case of subdirectories in RZ file.
*    Same bug in HNBFWR and HNTRD.
*
*    Bug corrected in HPAKAD
*
*    Bug fixed in HGNTF in case of packing and multiple ntuples
*
*    Protection in HBNAME (HNTNAM)
*
*::>          VERSION  4.21/06   09/12/93 08.56.15
*
*    Bug found in the hmcstats code and fixed. The bug would have
*    caused slightly different results for people using VERY low monte carlo
*    statistics, with lots of empty bins (Christine Beeston).
*
*    New routines HLNXTG and HLNXTG1 in HGLOBAL.
*    New routines HLNXTM and HLNXTM1 in HMMAP.
*    New routines HRZING and HRZINM called from HLATTR.
*    These new routines are called by HLNEXT to return the next
*    object from a global section or shared memory.
*
*::>          VERSION  4.21/05   29/11/93 17.23.14
*
*    New routine HOPTPF to send /HCOPT/ to PIAF.
*
*::>          VERSION  4.21/04   29/11/93 08.15.23
*
*    New routine HSTAF(CHOPT).
*       If CHOPT='YES' ststistics are computed at filling time.
*    routines modified: HBOOK1, HBOOK2, HBPROF, HMACHI.
*    new sequence /HCOPT/
     HSTAF is automatically called by the HPLOT options 'HSTA' and 'HNST'
*
*::>          VERSION  4.21/03   25/11/93 15.47.53
*
*    New routine HRZKEY called by HRIN. The new routine may speed up
*    considerably the routines HGN and HGNF. It computes the serial key
*    number for each ntuple extension and stores it in a bank which
*    is the next of LCONT.
*    Routines HGN and HGNF modified accordingly.
*
*::>          VERSION  4.21/02   17/11/93 13.06.05
*
*    Problem in HCDIR preventing the RLOGIN command in PAW is fixed.
*
*    Modify HRENID to process old/new RWNs and CWNs
*
*    Changes in HCREATEG to support ALPHA/VMS global sections.
*
*::>          VERSION  4.21/01   16/11/93 08.52.59
*
*    Add type declarations in HUWFUN
*
*    In HINDEX, change format from I6 to I7.
*
*    Mods in HCDIR for the old PIAF/PAWSERV.
*
*    Mods in HDELET/HIDPOS for PIAF (add new sequence $HCACHE).
*
*    Implement possibility to add 1-D histograms with alphanumeric labels
*    Mods in HOPERA. New routine HOPER1A.
*
*    Protection in routine HDBCOP (R.J.Genik). See comments in routine.
*
*    Set bit 5 to 0 in HLABEL
*
*::>          VERSION  4.21/00   26/10/93 15.39.39
*
*    Unused parameters deleted in the following routines:
*        HRESETM1,HREZ0M,HCOPYN,HCOPYT.
*
*    The following obsolete routines from HBOOK version 3 have been deleted:
*        HCORE,HDISKF,HFNEXT,HISTGO,HLCM,HLCM3,HLOK,HSTORE,HUNLOK,HWRITE.
*
*    Change format in HFNT2 error message (mail from Yves Roblin)
*
*    Remove unused variables or common blocks
+DECK,V4_20.
*CMZ :  4.20/14 22/10/93  11.19.43  by  Rene Brun
*-- Author :    Rene Brun   21/06/93
*
*::>          VERSION  4.20/14   22/10/93 11.19.43
*
*    Remove IOFSET limitation in HRIN for ntuples
*
*::>          VERSION  4.20/13   21/10/93 15.10.39
*
*    Introduce WINNT flag in nearly all routines with the LINUX flag.
*
*    Large array T removed in HMCLNL (C.Beeston)
*
*::>          VERSION  4.20/12   18/10/93 17.48.08
*
*
*::>          VERSION  4.20/11   15/10/93 16.56.03
*
*
*     Routine HGNTBF: fixed bug in case an index variable fit in memory
*     while the variable depending on that index variable did not fit in
*     memory.
*
*::>          VERSION  4.20/10   13/10/93 18.01.16
*
*
*     Implement possibility to list/plot histograms in a subdirectory
*       of a shared memory section. Mods in HCOPYU and HPLISM.
*
*     Routine HMCMLL: put DATA statement after declarations.
*
*     Routine HCDIR: don't allow to CD to server connection point (like
*     cd //piaf1) this does not make sense plus it causes conflicts when
*     a chain is named piaf1.
*
*     Routine HNBUF: first word of contents back must be zeroed. Fixes bug
*     when filling different Ntuples with index variables in the same job.
*
*     KEEP,HCMPCM contained +SELFs: OK for CMZ not for Patchy.
*          New KEEPs,HCMPCM1 and 2.
*
*::>          VERSION  4.20/09   28/09/93 16.39.40
*
*
*     New PATCH,HMCSTAT from Christine Beeston, R.Barlow from OPAL.
*      Fits the given Monte Carlo distributions to the data distribution, using
*      a binned maximum likelihood fit which includes the effect of both data
*      and Monte Carlo statistics, and allows weights to be
*      provided for each Monte Carlo distribution.  The data and Monte Carlo
*      distributions must be presented in 1 dimensional histograms.
*      The best estimate of the fraction of each Monte
*      Carlo distribution present in the data distribution is returned, with an
*      error estimate where required.
*
*     Common /PAWIDN/ : X(512) changed to X(522)
*
*     New routines HPLISG,HPLISG1 in patch HGLOBAL.
*     Routine HLDIR modified to call new routine HPLISG (VAX only).
*     HPLISH can do a Histo/List in Global sections.
*
*     Replace line with TEST.GT.1.5 by TEST.GE.0. in HFCN
*
*::>          VERSION  4.20/08   12/09/93 18.57.43
*
*
*     Histogram directory bank LTAB created and MZPUSHed with 500 words
*        and links instead of 50. This speeds up considerably programs
*        using a large number of histograms.
*
*     New deck HRNGPF in patch HBOOK
*     New deck HNDESC in patch HNTUP
*     Corrections in CWN filling and GET routines for character type columns
*
*     Ulrich Mueller changes for IEEE computers in filling routines.
*     There is an unpleasant feature in HBOOK on computers with IEEE 754
*     floating point arithmetic (in our case on DECstations under Ultrix
*     4.3a, CERNLIB 93b or 93d).
*
*     Calculations on these machines can give as result Infinity or
*     Not-a-Number (NaN). If one tries to fill these numbers into histograms
*     (and this happens in real-world applications, especially during the
*     development phase of a program), some problems may arise:
*
*     1) Filling of +/- infinity as value. This case is handled properly by
*        the checks for over/underflow and the value is counted as such.
*
*     2) Filling of NaN as value. The over/underflow checks fail because
*        relations like .LT. or .GE. are always false if one of the operands
*        is NaN. Then the value is converted to a bin address, which is an
*        undefined integer and finally results in either a segmentation
*        fault or an overwriting of memory somewhere.
*
*        However, this could easily be fixed, for example in HF1 (the other
*        routines are analogous):
*
*           IF(X.LT.Q(LPRX+1))THEN
*              ICHAN=0
*           ELSEIF(.NOT.(X.LT.Q(LPRX+2)))THEN
*              ICHAN=IQ(LPRX)+1
*           ELSE
*              ... calculate bin address ...
*           ENDIF
*
*        By changing the overflow check from .GE. to .NOT. .LT. the NaN
*        value will be counted as overflow. Another approach would be a
*        separate check for NaN, something like
*           IF (.NOT. (X.LT.0. .OR. X.GE.0.))
*        together with an appropriate error message.
*     ====>      This changes has been made in all filling routines
*
*     3) Filling of Infinity or NaN as a weight. This is maybe the worst
*        case. The value is added to the bin, and this results in a crash
*        when the ZEBRA structure is written to a file, or in a crash of PAW
*        if one tries to plot the bad histogram.
*
*        I propose to add a check for the finiteness of the weight. On most
*        machines a (C-)function "finite" is available for that purpose.
*     =====> This suggested change is not yet implemented.
*     Ulrich Mueller       Exp. WA89, Div. PPE, CERN, CH-1211 Geneva 23
*     ulm@vsnhd1.cern.ch   Phone +41-22-767-8658, FAX +41-22-7850314
*
*::>          VERSION  4.20/07   07/09/93 12.09.33
*
*     Optimization in HGNTBF in case of running on Piaf slave server
*
*     Introduced the deck HRNGPF (formerly PFRANGE in the Paw source)
*
*     Optimize logic of HCDIR for PIAF connections
*
*::>          VERSION  4.20/06   06/09/93 12.20.45
*
*     Optimize logic for sorting IDs in HRSORT
*
*::>          VERSION  4.20/05   29/08/93 10.08.32
*
*
*     New routine HRSORT(CHOPT) to sort IDs in a RZ directory
*     HRSORT is automatically called by HLDIR if option 'S' given
*     Routine HLNEXT automatically sorts IDs in increasing order
*     HLNEXT is the routine called by the PAW++ browser
*
*     New definition of $HCPIAF for parallel PIAF
*     Changes in HLOGPF,HINPF,HOUTPF for parallel PIAF
*
*     Changes in LINUX version in HSHM
*
*     Changes for Windows/NT (HMMAP in particular)
*
*     Sequence/common/HCRECO renamed HCRECV to avoid clash with L3 programs
*
*::>          VERSION  4.20/04   05/08/93 15.06.25
*
*     Protections introduced in case of empty arrays in HGNT2,HGNTBF.
*
*     Changes in Unix mapping memory routines.
*     SGI moved from BSD to SYS5 class.
*
*::>          VERSION  4.20/03   03/08/93 15.30.17
*
*
*     Bug fix in HGNTBF for indexed variables in ntuples.
*
*     Protection in HRESET to not reset ntuples.
*
*     Protection in HRIN if IOFSET is not 0 for RWN ntuples.
*
*     Changes in sequence HCNTPAW. MAXCOL=1000 replaced by:
*          MAXCR8=1000, MAXCR4=5000, MAXC32=1000
*
*     Maximum number of files extended to 50.
*
*     New routine HPROF2 to make profile histograms from 2-D histograms
*
*     Mods in HMINUT to call a user routine (via JUMPX2) to read
*     MINUIT commands. (In paw the user routine is PMNCOMD)
*
*     Decks HCDIR and HROUT: update LBUF and LTMP when switching between
*     different directories in memory.
*
*     New routines HRESETM,HRESETM1,HREZ0M to reset histograms
*     in shared memory (from W.Bruckner).
*     New routines HPLISM,HPLISM1 to list histograms in shared memory (W.B.)
*     Mods in HLDIR to call HPLISM.
*
*     Remove WARNING in HDIFFB in case of identical histograms (HDBINI)
*
*::>          VERSION  4.20/02   23/07/93 10.44.48
*
*     Mods in HRESET to reset HFIT structure
*
*     Deck HFNT2: when value is out of range substitute max or min value,
*     also check range when only number of bits is specified.
*
*     Deck HALLOC: moved code from PVMEM (PAW) into HBPRNT.
*
*::>          VERSION  4.20/01   28/06/93 11.48.27
*
*      Mods in HMINUT to call the new MINUIT routine MNCOMD.
*      The new routine MNCOMD is temporarily introduced as a DECK,MNCOMND
*      in the HBOOK file. This should be removed for the next release.
*      In particular MNCOMD will not work as it is on CRAYs.
*
*
*::>          VERSION  4.20/00   21/06/93 18.17.17
*
*      Fix problem in HRIN (IOFSET moved to 1st statement)
*
*      Deck HNTNAM: correct call to HBUG.
*
*      Save in word 12 (ZID) of the CWN header the Ntuple ID used
*      to write the Ntuple extensions on disk. This ID necessary when an
*      Ntuple has been loaded in memory with on offset. Decks changed:
*      HRIN, HBNT, HNBUFR, HNTRD.
*
*      Deck HGNTF: changed some error checks.
*
*      Deck HNTMPF: forgot to set LTMP1 (caused problems reading and
*      writing CWN's at the same time).
*
*      Deck HRECOV: set NTCUR=0 and fixed special case of endless loop.
*
*      Fixed bug in HALLOC (block names of 8 characters were overwriting
*      on VMS systems the first character of the column name)
+DECK,V4_19.
*CMZ :  4.19/05 08/06/93  12.17.57  by  Rene Brun
*-- Author :    Rene Brun   29/04/93
*
*::>          VERSION  4.19/05   08/06/93 12.17.57
*
*
*      Add new sequence /CZCBUF/IZCBUF
*      Changes in HMACHI,HRDIR and HLOGPF to use JUMPT2 to call CZGETC
*
*::>          VERSION  4.19/04   07/06/93 08.48.10
*
*
*      Changes in HLNEXT (implement client/server for PIAF)
*      Routine HCREATEM modified for SYSV systems (ICOMAD(1) set to 0)
*      HRECOV improved for CWN. Recovery time faster.
*      Problem fixed in handling of chains (1st event was missed occasionally)
*
*::>          VERSION  4.19/03   27/05/93 15.28.21
*
*      LINUX version introduced (from V.Balashov and A.Lomov)
*
*      Changes to HRECOV. New routines HRECO1 and HRECO2
*
*::>          VERSION  4.19/02   26/05/93 16.00.03
*
*
*      New routine HRECOV to recover ntuples missing the last header info.
*      HRECOV attempts to read the latest saved header. From the header
*      information, it looks at all ntuple extensions to reconstruct
*      the maximum number of blocks/events.
*      If successful, the new header is written to the file
*      Header of CWM Ntuple is written the first time a content buffer
*      is written. The header is written again whenever a column has
*      been added to the Ntuple. After every HFNT2 call that caused
*      buffers to be written the RZ directory structure is flushed to disk.
*      These intermediate Ntuple headers are used by the HRECOV routine.
*      They can be recognized by the fact that IQ(LCID+ZNOENT) = -1.
*
*      Protection added in HBFUN2 (for HRNDM2) (O.Perdereau)
*
*      Improvements to HQSIG1/2/3. (J.Allison)
*
*      Mods in HROPEN. An already open file in U mode cannot be attached
*      if another process is also attaching the file in U mode. RZEND now
*      called to delete the ZEBRA structure.
*
*::>          VERSION  4.19/01   11/05/93 15.19.34
*
*      New sequences $CZBUFF and $CZSOCK in HCDES
*      Changes in HCDIR, HRDIR and HLOGPF for the PIAF server case
*
*      Routine HFN saves now the ntuple header and calls RZSAVE everytime
*      the RZ buffer is written to the file. This changes enables recovery
*      in case the job writing the ntuple crashes before HROUT/HREND.
*
*      HRIN modified for the ADD option (IOFSET=99999)
*      A user reported a case where ID1+IOFSET=ID of an existing histogram.
*      When IOFSET=99999, the internal offset is now chosen to avoid a conflict.
*
*      Bug corrected in HXE for variable bin size histograms
*
*      Mods in Memory mapping routines HCREATEM and HALLOC
*
*::>          VERSION  4.19/00   930429  8.34
*
*      WARNING!!!. Patch HCDES split into individual sequences.
*
*      New sequences JBYT3,JBYT4 introduced for MSDOS.
*      New sequence HCRLF (Carriage Return, Line Feed).
*      Several routines modified to introduce the flags MSDOS,NDP and GNU.
*      In printing formats, several '1' replaced by CRLF from HCRLF.
*
*      Sequence $HCK modified. Parameters KBWIDX,KBWIDY deleted.
*      Parameters KMIN,KMAX renamed KMIN1 and KMIN2.
*      New Parameters KMIN2,KMAX2.
*      Logic to support HMINIM AND HMAXIM for 2-DIM implemented.
*      As a consequence the inverse of the binwidth is not stored
*      anymore in the LCID structure.
*      The position Q(LCID+KBWIDX) is now occupied by Q(LCID+KMIN2)
*      The position Q(LCID+KBWIDY) is now occupied by Q(LCID+KMAX2)
*      Routines HMAXIM/HMINIM modified.
*      All HBOOK/HPLOT routines dealing with the binwidth are changed.
*
*      Bug fixed in HMINUT. In case of loglikelihood fits, the
*      MINUIT ERRDEF was incorrectly set to 0.5
*
*      Sequence /HCFITD/ has been modified to FITPAD(24),FITFUN
*      When the option 'U' is given in the fit routines, the application
*      must store the value of the function in FITFUN (Double Precision).
*      By default, HFITGA,PO,EX use the 'U' option.
*
*      Change in routine HOPER1 to prevent INTEGER Overflows in HFCX.
*      Number of entries in LC3 set to -1
*
*      Logic to handle ntuple chains introduced.
*
*      Bug corrected in HRZFRA (VAX version only)
*
*      Changes in HBUG (CHMESS(1:1)=+ prints Warning instead of Error
*
*      KEEP,HCFITR modified (added IFYLOW,IFYUP, renamed IFXLOW,IFXUP)
*      Introduce subrange in Y in all fitting routines
*
*      HBFUN1: Change LCONT to LFUNC. LCONT recomputed if user function
*         calls HFIND.
*      HRZIN: Change LBANK-JBIAS to LBANK+JBIAS
*      New routines for chains
*      New option 'A' in HDIFFB
+DECK,V4_18.
*CMZ :  4.18/00 26/02/93  08.35.02  by  Rene Brun
*-- Author :    Rene Brun   26/02/93
*
*::>          VERSION  4.18/00   930226  8.35
*
*      Routine HLATTR rewritten
*      New version of routine HQWAVE by John Allison
*      Mods in HFNT2
*
+DECK,V4_17.
*CMZ :  4.17/09 16/02/93  10.01.47  by  Rene Brun
*-- Author :    Rene Brun   31/07/92
*
*::>          VERSION  4.17/09   930216 10.01
*
*      Names of some ZEBRA banks modified. DDL implemented.
*      Mods in routines to list directories.
*      Bug fixed in HFNT2 in case a CWN is filled again (Dave Rees)
*
*::>          VERSION  4.17/08   930204 11.57
*
*      Nasty bug found in HNTWRT. When routine HCDIR is called,
*         then IDLAST is reset to 0. If HNTWRT was called again,
*         in the same call to HFNT, then IDRZ(1)=0 !
*
*      Bug fixed in HLABEL and HLPOS (found by M.Goossens).
*
*::>          VERSION  4.17/07   930201 14.06
*
*      Changes in the Ntuple handling routines for ntuples with arrays
*      and substructures.
*
*::>          VERSION  4.17/06   930126 18.16
*
*      Changes in HGNT2 and HGNTF for ntuples with arrays.
*      Protection in case of large ntuples that could not be processed
*      by PAW.
*
*::>          VERSION  4.17/05   930124 13.19
*
*      Protections in HROPEN if filename already attached.
*      Change in HRFILE for option 'O' (exchange mode not used)
*      Bug fix in HRMDIR, HMDIR, HGN and HGNF.
*      Bug fix in HALLOC (wrong memory allocation when the new buffer
*         is bigger than the previous one for the same column)
*
*::>          VERSION  4.17/04   930120  8.10
*
*      The following problems fixed after the release:
*      Implement option 'O' in HRFILE to create old format files
*      Corresponding changes in HREND,HRIN,HRMDIR,HMDIR,HFN
*      Bug fixes when merging old-format with new-format ntuples
*      Bug fixed in HLABEL for 2-D case.
*      Bug fixed in HLNEXT,HLDIR2 to access the first key of a file.
*      Replace BIGP in HBOOKN by 1.E30 to avoid overflow on IBM.
*
*
*::>          VERSION  4.17/03   930115 17.09
*
*     Version released for cernlib 93a
*
*
*::>          VERSION  4.17/02   921221 17.56
*
*     Implement option 'E' in HOPERA.
*
*     Changes in HSCR to delete ntuples
*
*     New routine HDDIR to delete directories (memory or RZ)
*
*     Bug fixed in HMINUT when option 'E' given
*     COMMON/HCFITD/FITPAD(25) may be used in user fcn routine (DOUBLE P)
*
*     New example HEXAM8 in patch,HEXAM
*     Example HEXAM6 modified.
*     New ZEBRA pointers LHFIT,LFUNC,LHFCO,LHFNA introduced in HCBOOK
*     Changes in HSUPIN,HSUPIS
*
*::>          VERSION  4.17/01   921207 16.54
*
*
*
*     New set of routines to store alphanumeric labels on the axes.
*     Corresponding routines (HFC1,HFC2) to fill histograms with labels
*         (implementation by P.Aubert)
*
*     New routine HFINAM to store the names of the parameters after HFIT..
*
*     Modifications in HRZIN for PAWSERV
*
*     Reorganization of LHBOOK and LCDIR links (See HLIMIT)
*     Link 8 of LHBOOK/LCDIR reserved for HPLTAB (instead of link 4)
*
*     New Patch,HDIFF introduced (Rich Genik from D0)
*       New routine HDIFFB to compare histograms bin by bin
*       Existing routine HDIFF moved to this patch from patch,HBOOK.
*
*     New Patch,HQUAD introduced (Author John Allison Manchester)
*     HQUAD (see routine HQUAD) performs a fit with multiquadric radial
*     basis functions on 1- and 2-D histograms and ntuples with up to
*     NDMAX variables.
*
*::>          VERSION  4.17/00   920731 15.54
*
*
*     New PATCH,HNTUP introduced
*     All routines referencing ntuples modified, including I/O routines.
*     See new HBOOK manual for a complete description of the new ntuples.
*     Sequences /HCBOOK/, /HCDIRE/ modified.
*     Same sequences used by HPLOT and PAW (must be recompiled).
*
*
*      Protection in HOPER1 (divide by 0) (D.Sanders)
*
*      Routine HFITHC modified. DOUBLE PRECISION added.
*      Option 'L' added in HFITHN
*
*      Changes in HPAK,HFCX,HFCXY to increment the number of entries
*        following the sum of the contents in case of integer contents
*
*      Bug corrected in HGNPAR for memory-resident ntuples (title garbled)
*      Bug corrected in HRIN for memory-resident ntuples (title garbled)
*
*      Bug in output format in routine HWRITF corrected (Janusz Chwastowski)
*
*
*               ! ! ! !  W A R N I N G  ! ! ! !
*
*      HBOOK/RZ file format is changed. New version of HBOOK can still read
*      old format files. The change consists in adding a new key.
*      KEY(1)=ID as in old format
*      KEY(2)=ntuple extension  number (0 for histograms)
*      The new array ICHTYP(20) in HCDIRE contains the type of HBOOK file.
*        ICHTYP(ICDIR)=1 for old format HBOOK files
*                     =5 for new files
*      The new HBOOK files are machine independent and can be transported
*      across all architectures with normal binary FTP.
*      Maximum number of records in HBOOK file changed from 4000 to 16000
*      'X' EXchange mode is now set automatically
*
+DECK,V4_16.
*CMZ :  4.16/00 24/07/92  08.20.42  by  Rene Brun
*-- Author :    Rene Brun   24/07/92
*
*::>          VERSION  4.16/00   920724  8.20
*
*       New routine HLNEXT to scan the content of a HBOOK, RZ directory
*
+DECK,V4_15.
*CMZ :          02/06/92  17.55.07  by  Rene Brun
*-- Author :    Rene Brun   17/04/92
*
*::>          VERSION  4.15/00   920417 17.05
*
*
*     Bug fixed in HCREATEM/HMAPM (SYS5) by Chip Watson Cebaf.
*
*     Bug fixed in HRESET in case of ntuples (J.Colas)
*
*     Set error criterion properly for Chi**2 or Liklihood fits
*     routine HMINUT corrected (John Marraffino)
*
*     Changes in HCDES. New sequence HCFITD.
*     HCFITD introduced in HFCNH,HFCNV,HGAUS,HDEXPO and HPOLYN.
*     COMMON/HCFITD/FITPAD(25) may be used in user routine FUTIL
*     instead of single precision parameters.
*
*     Bug fixed in HFITHN (return array PARAM) Ian Scott
*
+DECK,V4_14.
*CMZ :  4.14/05 21/03/92  10.52.54  by  Unknown
*-- Author :    Rene Brun   22/10/91
*
*::>          VERSION  4.14/05   920321 10.52
*
*       Protection introduced in HPR1V (P.Lanius)
*
*
*::>          VERSION  4.14/04   920309 23.16
*       Ntuple saga again. The procedure to speed-up memory-resident
*       ntuples had several consequences. Changes made in HGNPAR.
*
*
*::>          VERSION  4.14/03   920308  8.33
*
*       Change logic in HRIN for memory-resident ntuples.
*       Previous algorithm affected also disk-resident ntuples
*
*
*::>          VERSION  4.14/02   920306 11.04
*
*       Bug corrected in HRIN for memory-resident ntuples (1 block)
*
*
*::>          VERSION  4.14/01   920302 16.31
*
*       Bug corrected in HOPER1 for functions (A.Nathaniel)
*       Changes in UNIX memory mapping routines.
*       Note that HLIMAP cannot be used under HPUX with the current
*       version of f77 (crash in MZSTOR).
*
*
*::>          VERSION  4.14/00   911022  9.25
*
*       Protections in HRNDM1 and HRNDM2
*       Changes in HFCNV
*       Format change in HPTIT
*       New routine HRENID to rename IDS on a RZ file
*       Bug corrected in HFUNC (shift by 1 channel)
*       Format change (I6 to I8) in HINDEX and HINPRX
*       Mods in HPR1H for BIBBI case
*       Bug corrected in HSTATI/HPRST in case of negative contents
*       Save IQUEST(10) in HROPEN due to changes in RZOPEN
*       New routine HGDIRE(LUN,CHDIR)  to return TOPDIR name corresponding
*         to LUN.
*
*       Option 'I' changed to ' ' in all calls to MZPUSH
*       Speed-up of HGN and HGNF
*       Changes in HRIN to speed up HGN/HGNF
*       New fast filling routine HF1N (called by PAW)
*
+DECK,V4_13.
*CMZ :  4.13/01 06/09/91  13.59.22  by  Rene Brun
*-- Author :    Rene Brun   02/09/91
*
*::>          VERSION  4.13/01   910906 13.59
*
*       Routines HPROJ1 and HPROJ2 changed with the correct /PAWIDN/
*
*::>          VERSION  4.13/00   910902 17.07
*
*
*       This version of HBOOK requires ZEBRA version 3.66/8
*       Changes in PILOT,PATCH for IBMMVS and NEWLIB.
*       Changes in HEXAM for IBMMVS.
*       Changes in HMAXIM/HMINIM
*       SET EPS changed to 1.E-14 in HMINUT
*       New option 'E' in Fitting routines
*          Option 'E' selects a better error evaluation
*       New routine HGFIT returning fit parameters
*       Changes in HPR1H,HPR1V (reset I20,I21 for 2-Dim case)
*       New PATCH,CHBOOK (in C) for memory mapping)
*       Routine HLDIR can list a RZ tree in histo format.
*       Mods in HLDIR to call RZSCAN (new ZEBRA routine) and HLDIRT
*       Routine HLDIR2 deleted.
*       Protection in HPDIR when trying to print a RZ directory.
*       Routine HMDIR modified to allow creation of a directory
*       in a directory which is not the current directory
*       Bug corrected in HFUNC
*       Protection in HPAFF (same as RZPAFF by M.Marquina)
*
+DECK,V4_12.
*CMZ :  4.12/00 17/04/91  08.17.57  by  Rene Brun
*-- Author :    Rene Brun   17/04/91
*
*::>          VERSION  4.12/00   910417  8.17
*
*       Changes in FORMAT in routine HDIFF
*
+DECK,V4_11.
*CMZ :  4.11/01 15/02/91  18.07.12  by  Rene Brun
*-- Author :    Rene Brun   10/02/91
*
*::>          VERSION  4.11/01   910215 18.07
*
*      Flag NEWLIB introduced in HMACHI
*
*::>          VERSION  4.11/00   910210 16.55
*
*
*         Remove the test in HFCNV on TEST (same as HFCNH)
*         Bugs corrected in HFETCH and HREAD
*         Bug corrected in HLDIR2 (IOFSET not initialized: W.Brueckner)
*         Bug corrected in HX/HPR1H for non-equidistant bins (G.Maringer)
*         SAVE statement added in HFF2 (W.Brueckner)
*         Correction in HAUTO (LW not computed)
*         Introduce HPUX version
*
 
+DECK,V4_10.
*CMZ :  4.10/06 10/02/91  16.53.12  by  Rene Brun
*-- Author :    Rene Brun   07/11/90
*
*::>          VERSION  4.10/06   910210 16.53
*
*
*::>          VERSION  4.10/05   901107 16.37
*
*         COMMON/HCDIRE/ modified. Number of possible directories
*          has been changed from 20 to 100.
*          This changes implies recompilation of HPLOT,PAW.
*          Note that a similar change has been made in RZEBRA.
*          Argument to user functions copied before calling
*            the function in HBFUN1/HBFUN2 to prevent cases
*            where a bad user is changing the argument.
*          Bug corrected in HFIND for HBOOKB case
*          Correction in HFITH in case of HFITGA (Sigma>0)
*          Added IQUEST(1)=1 in HCDIR if directory not found (M.Guan..)
*          Slight changes for OS9/RTF compiler (Equivalence order)
*          Bug corrected in HSPLI2 (A.Nathaniel)
*          Mods in HCOPYN calling a new routine HCOPYT (copy Ntuples)
*          Mods in HSCALE and HMAXIM. HMAXIM may be called for a 2-Dim
*              HMAXIM uses KSCAL2 word
*
*
+PATCH,HISTORY.
+DECK,BLANKDEK.
*CMZ :  4.10/05 16/08/90  10.35.58  by  Rene Brun
*-- Author :
*
*                VERSION 4.10 (16/08/90)
*
*         COMMON/HCDIRE/ modified. Number of possible directories
*          has been changed from 20 to 100.
*          This changes implies recompilation of HPLOT,PAW.
*          Note that a similar change has been made in RZEBRA.
*          Argument to user functions copied before calling
*            the function in HBFUN1/HBFUN2 to prevent cases
*            where a bad user is changing the argument.
*          Bug corrected in HFIND for HBOOKB case
*          Correction in HFITH in case of HFITGA (Sigma>0)
*          Added IQUEST(1)=1 in HCDIR if directory not found (M.Guan..)
*          Slight changes for OS9/RTF compiler (Equivalence order)
*          Bug corrected in HSPLI2 (A.Nathaniel)
*          Mods in HCOPYN calling a new routine HCOPYT (copy Ntuples)
*          Mods in HSCALE and HMAXIM. HMAXIM may be called for a 2-Dim
*              HMAXIM uses KSCAL2 word
*
*
*                VERSION 4.09 (11/04/90)
*
*         Mods in HDIFF (for HPAK case)
*         New routine HPAKAD
*         Changes in machine PATCHY flags
*         Routine HROPEN based on new ZEBRA routine RZOPEN
*         New routine HFNOV to fill a "cyclic Ntuple"
*         Double precision variables in HSTATI and HPRST
*         Bug corrected in HOPER1 for Number of equivalent events
*         Changes in HFN (HCDIR+RZCDIR) when RZ is used together
*           with HBOOK.
*         Changes in HCREATEG
*         New DECK H0MPW introduced for MACMPW to force a new segment
*         Bug fixed in HLDIR (M.Guanziroli)
*
*                VERSION 4.08 (18/12/89)
*
*         SET EPS=0.0000002 in HMINUT
*         New routine HFITHN introduced
*          + internal routines HICTOI,HFITF,HFITHC
*          + new Patchy sequence HCFITF
*         Bug corrected in HINDEX for slices
*         Changes in HFITH1 and HSUPIS to take care of histograms
*           with non-equidistant bins
*         In HCOPY set bit 5 =0
*         In HRIN look at bit 5 before deleting histogram in memory
*         In HIDOPT, option SHOW implemented
*
*                VERSION 4.07 (29/09/89)
*
*         Mods in HHIPAR. Do not force IWEIGH=1 if HPAKE.
*         Mods in HMINUI. (if PARAM=0.)
*         Mods in HFCN
*         Protection in HMDIR against CHDIR with more than 16 characters
*         Sequences HCFIT4,HCFIT5 deleted.
*         Bug corrected in HRNDM2
*         MAXLEN changed to 110 in HPAFF
*         HGN returns IERROR=-1 if event nr > number of events
*         Mods in HCREATEG (Jim Loken)
*         Protection in HDIPKL
*         Minor change in HMINUI
*         Minor change in HEXAM5
*         Maximum number of variables in a Ntuple changed to 512
*         Change in HFITGA. Parameter COEFF in phase with documentation
*         HDIFF writes on LOUT instead of 6.
*         Text of message changed in HUNPAK/HUNPKE
*         Bug corrected in HFINOP for BANY
*         SAVE statement added in HRNDM1/HRNDM2
*         Array FITDER added in sequence /HCFITS/.
*         Variable EPSIH renamed EPSIF in /HCFIT6/.
*         Format changed in HPTIT (I4 instead of I3)
*         DEFT changed to SETD in HIDOPT.
*         Epsil shift (1.e-6) in booking routines removed.
*         Change in HDELET (clear link for HCOPYM)
*         Change in HSIFLA (status word bit 5 set for PAW)
*         Changes in all routines modifying histogram structure
*           (call sbit0(iq(lcid),5) for PAW
*         Set IQUEST(1)=0 in HSPACE (problems with the ZEBRA server)
*         Correct HCOPYN for profile histograms with option S
*         New version of HCREATEG from J.Loken
*         Changes in HINDEX for printing limits of slices and bands*
*         New fitting routines HFITH and HFITV introduced
*         Routines HFITPO,HFITEX,HFITGA interfaced to HFITH
*         Added calls to interactive Minuit if option 'M'
*         Examples modified
*         Fit parameters now stored with histogram data structure.
*         Variable IOFIT in /HCFORM/
*
*                VERSION 4.06 (30/06/89)
*
*         INOT replaced by INNOT in printing routines
*         Current Directory set to //PAWC at the end of HREND
*         Bug corrected in HNORMA (C.ERD)
*         Bug corrected in HSTATI
*         HRDIR implemented for subdirs of a global section
*         Change to standard intrinsic functions of Fortran 77
*         CONVEX version introduced
*         Version of HROPEN for IBMMVS introduced.
*         New routine HDERIV (user callable)
*            HDERIV is a replacement for the dummy routines
*            HDERI1,HDERI2,HDERIN
*         HEXAM modified
*         Report bug in HBOOKN for ID>9999
*         Bug corrected in HRZIN for Ntuples (CZ mode)
*
*         New interface to MINUIT introduced (with E.Lessner FNAL)
*         Changes in fitting routines for IWEIGH.NE.0
*
*         Changes in HBARX/HBARY
*         When HBARX/Y is called, the routine fills the sum of
*         the square of the weights from the actual contents
*         This is introduced to make easier the computation
*         of error bars by HOPERA.
*
*                VERSION 4.05 (29/03/89)
*
*         Sequence JBIT replaced for Apollo
*         Unused sequences removed
*         Bugs corrected in HPROJ1(2) ISEL not used
*         Routines HRZIN/HRZOUT changed (New CZ and ZS)
*         New routine HRDIR
*         Bug corrected in HPR1H
*         Remove limitation for CHRZPA<3 in HBOOKN
*         Protection added in HFILPF (overflows)
*         DOUBLE PRECISION kept on CRAY in HF1,HPRST and HSTATI
*         Bug corrected in HPR1V for INTE and many parts
*         Bug corrected in HARRAY
*         Bug corrected in HF1AUT
*         Bug corrected in HMONIT
*         sequence HCDIRE modified. New array HFNAME containing
*         the file name
*         Mods in HBOOKN. 80 characters always allocated to CHRZPA.
*         Mods in HRIN to change CHRZPA to current directory.
*         Bug corrected in HBCDI (RETURN missing)
*         Patchy flag SAVE removed (default)
*
*         Mods in HBOOKN (Limit to 120)
*         Protection in HTERM
*         Mods in HCOPYN (add profiles)
*         Mods in HRZIN
*         Mods in HRGET and HRPUT when CHFILE=' '
*         Add option 'A' in HRGET (JOFSET=99999 in HRIN)
*         Bug corrected in HLDIR2
*         Bug corrected in HEXAM5 (array EY not defined)
*         Unused variables removed (FTN on DN10000)
*         Calls to UCTOH1 replaced by UCTOH
*         Bug corrected in HSPFUN (Annette Frenkel)
*         HSPLI1 always return CHISQ
*         New options 'F1 and F2' in HDIFF
*         Routine HISTDO now calls HPDIR('//PAWC','TI')
*         Option 'I' added in HPDIR
*         Routines HRZFIL and HRZEND removed
*         Changes in HRFILE,HRZCD for communication mode
*         Change IQUEST(1)=0 in HCDIR
*         Bug corrected in HSTATI (LCONT set to IFW removed)
*         IDLAST always set to 0 in HLOOP
*         Bug corrected in HPHIST/HPROT for slices in X
*         Routines for Vax Global sections rewritten by J.Loken
*
*                VERSION 4.04 (10/11/88)
*
*         Changes in all booking routines (31-->16)
*         Mods in HROUT
*         Mods in HFF1,HIPAK1,HF1,HF2
*         Patchy flag SAVE introduced
*         New routines HGNPAR and HGNF
*         Routines HPROJ1 and HPROJ2 modified
*
*                VERSION 4.03 (05/09/88)
*
*         Routine HCX modified to solve a CRAY compiler problem
*         Routines HFETCH,HFETC1 corrected for same problem as HCX
*         Routine HF1 corrected for non-equidistant bins histograms
*         Argument IDD added in HSPACE
*         Argument KCASE in HUNPAK declared type CHARACTER
*         Argument KNAME in HPHIST and HPROT declared type CHARACTER
*         NOARG removed from HPHIST and HPROT
*         Bug corrected in HPHIST affecting HPR1V
*         Routines HPROJ1,HPROJ2 modified to handle MASK logic in PAW
*             and HGN
*         Routine HFILPF changed to take W into account
*         COMMON/PAWIDN/IDNEVT,X(127) added.
*         UNIX version introduced.
*         Changes in HMACHI,HPCHAN,HPATH.
*         Bugs corrected in HFILPR and HPR1V.
*         Bank LHBOOK changed to 50 links (10 struct.)
*         Automatic binning algorithm modified (HF1AUT)
*         Routine HROUT accepts option 'T'
*         New routines HROPEN,HRGET and HRPUT
*         Routine HRIN modified to simulate option 'T'
*           If ICYCLE>1000 and ID=0 implies option 'T'
*         Routines HBOOK1 and HF1 changed. Accumulate the 100 first
*           entries instead of just 50.
*         Mods in all routines using NBIT
*         Check for space left in HLDIR
*         Changes in HMAPG (J.Loken)
*
*                VERSION 4.02 (28/04/88)
*
*         Bugs  corrected in routine HFF1,HFF2,HIPAK1,HIPAK2 (Kevin Einsweiler)
*         Bugs corrected in HIDOPT (Helmut Burkhardt)
*         Bugs corrected in HPROJ1,HPROJ2 (V.Journe)
*         Option I implemented in HLDIR (HINDEX format)
*         New routine HUNPKE to unpack errors (same calling as HUNPAK)
*         Bug corrected in HSTATI(C.Onions)
*         Bug corrected in HOPER1 (calculation of errors)(V.Gibson,A.Parker)
*         Bugs corrected in HSPFUN,HSPLI1,HSPLI2
*         Bug corrected in HFETCH (D.Schlatter)
*         ALLIANT version introduced
*         New facility to access remote files across a network
*           An implementation with TCP/IP is available
*           (Works together with the new option FZCHANNEL of ZEBRA)
*         Correction in HFETCH (problem on NORD) (A.Read)
*         Changes in HRFILE for global sections (IQUEST)
*         LOUT changed to 6 for Apollo and Alliant
*         Y scale factor better computed when HMAXIM is called (V.Palladino)
*         Operations between profile histograms implemented (suggested by H.Chan
*         Modification of algorithm to print integrated contents (P.O.Hulth)
*         Routine HGN optimized
*         New routine HGIVEN (same as HGIVE for N-tuples) (R.Namjoshi)
*         Routine HSCR implemented as described in the documentation
*         Mods in HBANDX and HBANDY (reverse booking order)
*         Set a limitation for NVAR<129 in HBOOKN
*         Changes in HFN and HCDIR for N-tuples in memory
*         Protection in booking routines in case HDELET is called
*         IDLAST reset in all printing routines
*         Bugs corrected in HLDIR and HPDIR
*
*                VERSION 4.01 (18/02/88)
*
*         Bugs corrected in routine HGN (Rohit + Iversen)
*         Bug  corrected in HFINOP (affected HSTATI and HUNPAK)
*         Bugs corrected in HPROJ1,HPROJ2
*         Protection in HROUT
*
*                VERSION 4.00 (08/02/88)
*
*         New version based on ZEBRA. (version 3.54 needed)
*         Storage area is the COMMON/PAWC/H(ispace)
*         The user has to dimension this common block and
*         initialize the HBOOK package by CALL HLIMIT(ispace)
*
*         Only character strings or variables are accepted for titles
*
*         With the new version one must always specified
*         the correct number of arguments in subroutine calls. The
*         facility to miss some arguments will be withdrawn from HBOOK
*         in a few monthes.
*         HFILL must have 4 arguments
*         HSTORE and HFETCH are dummy. Use HRFILE,HRIN,HROUT,HREND instead
*
*         A set of new routines is available for
*           - Structuring IDs in memory.
*           - Statistical comparison of histograms (HDIFF)
*           - Give options
*           - Sequential I/O
*           - Random access I/O (PATCH,HRZ)
*           - N-tuples
*           - New routine HFILPR to fill existing projections
*           - New routine HGSTAT to get statistics
*           - New routines HBPROF and HFILPF to book and fill
*             profile histograms
*           - New functionality for HLIMIT
*             without initialization of ZEBRA
*           - New routine HBUG to print error messages
*           - Using shared areas (Online) HCOPYM
*           - New routine HBOOKB (histos with non-equidistant bins)
*           - New routine HREP1 to replace contents of one channel
*           - New routine HGN to return one event from a N-tuple
*           - New routine HPSTAT to print statistics about ID
*           - PATCH,HGLOBAL for shared global sections on VAX
*          (See new documentation)
*
+PATCH,*HBOOK
+DECK,BLANKDEK.
*CMZ :          05/05/95  14.56.58  by  Unknown
*-- Author :
+USE,HBOOK,HDIFF,HNTUP,HQUAD,HMCSTAT,HRZ,HMERGE,HCDES.
+USE,HGLOBAL,IF=VAX.
+USE,   ALPHA_OSF,        IF=QMVAOS.
+USE,   IBM,     IF=IBMMVS,NEWLIB.
+USE,   UNIX,    IF=IBMRT, SGI, SUN, APOLLO, HPUX, AIX370, LINUX,NEXT.
+USE,   UNIX,    IF=ALLIANT, MACMPW, CONVEX, DECS, IPSC,MSDOS,WINNT.
+USE,   QF2C,    IF=MSDOS.
+USE,   DOUBLE,  IF=IBM, VAX, NORD, UNIVAC.
+USE,   DOUBLE,  IF=UNIX, IF=-SINGLE.
+USE,   BSLASH,  IF=SGI, IBMRT, SUN,DECS,IPSC,APOF77,GNU,LINUX,QMALPH.
+USE,   BSLASH,  IF=WINNT, QF2C.
+USE,   CZ,      IF=APOLLO,VAX,UNIX,IBM,IF=-IPSC,IF=-MSDOS,IF=-WINNT.
+USE,   QX_SC,   IF=SUN, SGI, DECS, CONVEX, IBMRT, HPUX, AIX370,IPSC.
+USE,   QX_SC,   IF=NEXT,MSDOS,LINUX,WINNT.
+USE,   QX_SC,   IF=APOLLO, IF=APOF77.
+USE,   QXNO_SC, IF=APOLLO, IF=-APOF77.
+USE,   BSD,     IF=APOLLO,SUN,CONVEX.
+USE,   SYS5,    IF=IBMRT,DECS,HPUX,SGI,AIX370,IPSC,LINUX.
+USE,   HMMAP,   IF=APOLLO,UNIX,IF=-CRAY,IF=-IPSC,IF=-MSDOS.
+USE,   CHBOOK,FPCLASSC.
+USE,   NO_IEEE, IF=IBM,VAX,AIX370,NORD,UNIVAC.
+PATCH,*HMERGE.
+DECK,BLANKDEK.
*CMZ :  4.22/04 07/06/94  09.11.09  by  Rene Brun
*-- Author :    Fons Rademakers   06/06/94
+USE,MAIN,HMERGE,HCDES.
+PATCH,*HEXAM
+DECK,BLANKDEK.
*CMZ :  4.20/13 21/10/93  15.01.08  by  Rene Brun
*-- Author :
+USE,HEXAM,HCDES,EXAMPLES.
+USE,   UNIX,    IF=IBMRT, SGI, SUN, APOLLO,HPUX,AIX370,LINUX.
+USE,   UNIX,    IF=ALLIANT, MACMPW, CONVEX, DECS, MSDOS, WINNT.
+USE,   DOUBLE,  IF=IBM, VAX, NORD, UNIVAC.
+USE,   DOUBLE,  IF=UNIX, IF=-SINGLE.
+USE,   BSLASH,  IF=SGI, IBMRT, SUN, F2C, LINUX, WINNT.
 
+PATCH,HCDES
+KEEP,hchoptm.
*CMZ :  4.22/11 24/08/94  17.54.34  by  Rene Brun
*-- Author :    Rene Brun   24/08/94
      CHARACTER*16 CHOPTM
      COMMON/HCHOPTM/CHOPTM
*
+KEEP,HCFAST.
*CMZ :  4.21/08 14/02/94  17.19.04  by  Rene Brun
*-- Author :    Rene Brun   14/02/94
      PARAMETER (NIDMAX=1000)
      COMMON/HCFAST/NID(NIDMAX)
 
+KEEP,HCBONT.
*CMZ :  4.21/10 01/03/94  11.54.50  by  Rene Brun
*-- Author :    Rene Brun   10/01/94
*
*-- ATTENTION: when changing anything in these common blocks check
*--            also $HCNTPAW.
*
      PARAMETER      (MAXNP = 1000, MAXNC = 8000)
      PARAMETER      (MAXDUM=50007-4*MAXNP-3)
      REAL           XONT(MAXNP), YONT(MAXNP), ZONT(MAXNP), WONT(MAXNP)
      REAL           DUMCR4(MAXDUM)
      INTEGER        KONTYP, NONT,NCHONT
      CHARACTER*4    CHONT(MAXNC)
*
      COMMON /PAWCR4/KONTYP,NONT,XONT,YONT,ZONT,WONT,NCHONT,DUMCR4
      COMMON /PAWC32/ CHONT
*
+KEEP,HCOPT.
*CMZ :  4.21/05 29/11/93  14.10.46  by  Fons Rademakers
*-- Author :    Rene Brun   27/11/93
      COMMON/HCOPT/ICOPT(10)
*
      EQUIVALENCE (ISTAF, ICOPT(1))
*
+KEEP,HCACHE.
*CMZ :  4.21/01 01/11/93  18.20.48  by  Fons Rademakers
*-- Author :    Fons Rademakers   01/11/93
      PARAMETER (IDMXNT = 100)
      COMMON /HCACHE/ IDNOT(IDMXNT), IDTNOT
+KEEP,HCMCPM1.
*CMZ :  4.20/10 30/09/93  08.15.34  by  Rene Brun
*-- Author :
       REAL BJ(NSRCMX)
+KEEP,HCMCPM2.
*CMZ :  4.20/10 30/09/93  08.15.34  by  Rene Brun
*-- Author :
       DOUBLE PRECISION BJ(NSRCMX)
+KEEP,HCMCPM.
*CMZ :  4.20/13 19/10/93  15.38.13  by  Roger Barlow, Christine Beeston
*-- Author :    Christine Beeston   24/09/93
 
C some maximum values - max number of bins and dimensions
       INTEGER NSRCMX,NSRCMN,NOPTS
       PARAMETER(NSRCMX=20,NSRCMN=2,NOPTS=7)
 
C Numbers of monte carlo and data events, links to data, MC and weight
C histograms, Number of mc sources, options, total number of bins.
C normalisation constants for weight histograms
 
+SEQ,HCMCPM1,IF=-DOUBLE.
+SEQ,HCMCPM2,IF=DOUBLE.
       INTEGER NDATEV,NMCEV(NSRCMX),
     + NMCSRC,IOPT(NOPTS),NTOT
       COMMON/HINPUTS/NDATEV,NMCEV,NMCSRC,IOPT,NTOT,BJ
C Histogram IDs
       INTEGER IDD,IDM(NSRCMX),IDW(NSRCMX)
       COMMON/HMCIDS/IDD,IDM,IDW
 
+KEEP,HCRECV.
*CMZ :  4.20/05 19/08/93  11.48.32  by  Rene Brun
*-- Author :    Fons Rademakers   25/05/93
      LOGICAL         NRECOV
      COMMON /HCRECV/ NRECOV
*
+KEEP,HCMINPU.
*CMZ :  4.20/03 28/07/93  09.34.19  by  Rene Brun
*-- Author :    Rene Brun   18/06/93
      INTEGER NCMINP,IADINP
      COMMON/HCMINP1/NCMINP,IADINP
      PARAMETER (MCHINP=50)
      CHARACTER*80 CHINPU(MCHINP)
      COMMON/HCMINPU/CHINPU
*
+KEEP,CZCBUF.
*CMZ :  4.19/05 08/06/93  10.43.23  by  Rene Brun
*-- Author :    Rene Brun   08/06/93
      COMMON/CZCBUF/IZCBUF
*
+KEEP,HCSAVE.
*CMZ :  4.19/02 14/05/93  12.46.14  by  Fons Rademakers
*-- Author :    Fons Rademakers   14/05/93
      LOGICAL         NTSAVE
      COMMON /HCSAVE/ NTSAVE
*
+KEEP,CZSOCK.
*CMZ :  4.22/04 02/06/94  08.46.59  by  Rene Brun
*-- Author :    Fons Rademakers   06/05/93
      INTEGER       LUNCZ,IADTCP,LBUFCZ,ISKIN,ISKOUT,IPROT
      COMMON/CZSOCK/LUNCZ,IADTCP,LBUFCZ,ISKIN,ISKOUT,IPROT
+KEEP,CZBUFF.
*CMZ :  4.20/03 28/07/93  10.57.50  by  Rene Brun
*-- Author :    Fons Rademakers   06/05/93
      CHARACTER*512 CHBUF
      COMMON/CZBUFC/CHBUF
*
+KEEP,HCRLF1.
*CMZ :  4.19/00 19/04/93  10.16.13  by  Rene Brun
*-- Author :    Rene Brun   19/04/93
         PARAMETER (CRLF='1')
+KEEP,HCRLF2.
*CMZ :  4.19/00 19/04/93  10.16.13  by  Rene Brun
*-- Author :    Rene Brun   19/04/93
         PARAMETER (CRLF=CHAR(12))
+KEEP,HCRLF.
*CMZ :  4.20/13 21/10/93  15.01.47  by  Rene Brun
*-- Author :    Rene Brun   19/04/93
      CHARACTER*1 CRLF
+SEQ,HCRLF1,IF=-MSDOS,IF=-WINNT.
+SEQ,HCRLF2,IF=MSDOS,WINNT.
+KEEP,HCPIAF.
*CMZ :  4.21/08 01/02/94  11.41.10  by  Fons Rademakers
*-- Author :    Fons Rademakers   15/04/93
*--- shared between HBOOK and PAW
      PARAMETER  (MXSLPF = 32)
      COMMON/HCPIAF/NTPIAF
     +             ,CONNPF,SERVPF,MASTPF,SLAVPF,CLINPF,CLUTPF,LOGLPF
     +             ,NSLAVE,NSLBAD,NSLVPF,SLINPF(MXSLPF),SLUTPF(MXSLPF)
     +             ,NGSIZE, MYSID, SMASK, SRIN, SROUT, SVMIO, STUSER
     +             ,STCPU, MASPID
      COMMON/HCPIA1/SLHOPF(MXSLPF), SLHBAD(MXSLPF), PIAFRC
*--- flag set by HGETNT if the current Ntuple is on Piaf server
      LOGICAL NTPIAF
*--- flag if Piaf server is connected
      LOGICAL CONNPF
*--- flag if this is a server (master or slave)
      LOGICAL SERVPF
*--- flag if this is the master server
      LOGICAL MASTPF
*--- flag if this is a slave server
      LOGICAL SLAVPF
*--- sockets between client and master server
      INTEGER CLINPF, CLUTPF
*--- log level of diagnostic output
      INTEGER LOGLPF
*--- number of active slaves and mask used by the select (PSELCT) function
      INTEGER NSLAVE, SMASK
*--- number of running slave servers and sockets between master and slaves
      INTEGER NSLVPF, SLINPF, SLUTPF
*--- hosts on which slaves are running
      CHARACTER*16 SLHOPF
*--- number hosts on which no slaves can be run
      INTEGER NSLBAD
*--- hosts on which no slaves can be run
      CHARACTER*16 SLHBAD
*--- current slave group view: group size and unique slave id
      INTEGER NGSIZE, MYSID
*--- pid of the master server (used by slave servers)
      INTEGER MASPID
*--- authentication record
      CHARACTER*64 PIAFRC
*--- IO and CPU usage of all slaves
      REAL SRIN, SROUT, SVMIO, STUSER, STCPU
*--- Work space
      COMMON/HCPIAC/CHSMPF,    CHLMPF
      CHARACTER     CHSMPF*80, CHLMPF*256
*
+KEEP,HCK
*CMZ :  4.19/00 26/04/93  12.34.29  by  Rene Brun
*-- Author :
      INTEGER   KNCX   ,KXMIN  ,KXMAX  ,KMIN1  ,KMAX1 ,KNORM  , KTIT1,
     +          KNCY   ,KYMIN  ,KYMAX  ,KMIN2  ,KMAX2 ,KSCAL2 , KTIT2,
     +          KNBIT  ,KNOENT ,KSTAT1 ,KNSDIR  ,KNRH ,
     +          KCON1  ,KCON2  ,KBITS  ,KNTOT
      PARAMETER(KNCX=3,KXMIN=4,KXMAX=5,KMIN1=7,KMAX1=8,KNORM=9,KTIT1=10,
     +          KNCY=7,KYMIN=8,KYMAX=9,KMIN2=6,KMAX2=10,KSCAL2=11,
     +          KTIT2=12,KNBIT=1,KNOENT=2,KSTAT1=3,KNSDIR=5,KNRH=6,
     +          KCON1=9,KCON2=3,KBITS=1,KNTOT=2)
*
+KEEP,HCBOOK.
*CMZ :  4.19/01 30/04/93  17.22.15  by  Rene Brun
*-- Author :
      INTEGER     NWPAW,IXPAWC,IHDIV,IXHIGZ,IXKU,        LMAIN
      REAL                                       FENC   ,      HCV
      COMMON/PAWC/NWPAW,IXPAWC,IHDIV,IXHIGZ,IXKU,FENC(5),LMAIN,HCV(9989)
      INTEGER   IQ        ,LQ
      REAL            Q
      DIMENSION IQ(2),Q(2),LQ(8000)
      EQUIVALENCE (LQ(1),LMAIN),(IQ(1),LQ(9)),(Q(1),IQ(1))
      INTEGER       HVERSN,IHWORK,LHBOOK,LHPLOT,LGTIT,LHWORK,
     +LCDIR,LSDIR,LIDS,LTAB,LCID,LCONT,LSCAT,LPROX,LPROY,LSLIX,
     +LSLIY,LBANX,LBANY,LPRX,LPRY,LFIX,LLID,LR1,LR2,LNAME,LCHAR,LINT,
     +LREAL,LBLOK,LLBLK,LBUFM,LBUF,LTMPM,LTMP,LTMP1,LHPLIP,LHDUM,
     +LHFIT,LFUNC,LHFCO,LHFNA,LCIDN
      COMMON/HCBOOK/HVERSN,IHWORK,LHBOOK,LHPLOT,LGTIT,LHWORK,
     +LCDIR,LSDIR,LIDS,LTAB,LCID,LCONT,LSCAT,LPROX,LPROY,LSLIX,
     +LSLIY,LBANX,LBANY,LPRX,LPRY,LFIX,LLID,LR1,LR2,LNAME,LCHAR,LINT,
     +LREAL,LBLOK,LLBLK,LBUFM,LBUF,LTMPM,LTMP,LTMP1,LHPLIP,LHDUM(9),
     +LHFIT,LFUNC,LHFCO,LHFNA,LCIDN
*
+SEQ,HCK
+KEEP,HCFORM
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON/HCFORM/IODIR,IOH1,IOH2,IOHN,IOCF1,IOCF2,IOCB1,IOCB2,
     +              IOCF4,IOFIT,IONT,IOBL,IJUNK
*
+KEEP,HCFLAG
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      INTEGER       ID    ,IDBADD,LID   ,IDLAST,IDHOLD,NBIT  ,NBITCH,
     +       NCHAR ,NRHIST,IERR  ,NV
      COMMON/HCFLAG/ID    ,IDBADD,LID   ,IDLAST,IDHOLD,NBIT  ,NBITCH,
     +       NCHAR ,NRHIST,IERR  ,NV
*
+KEEP,HCDIRE.
*CMZ :  4.20/03 28/07/93  09.33.32  by  Rene Brun
*-- Author :
      PARAMETER (NLPATM=100, MXFILES=50)
      COMMON /HCDIRN/NLCDIR,NLNDIR,NLPAT,ICDIR,NCHTOP,ICHTOP(MXFILES)
     +              ,ICHTYP(MXFILES),ICHLUN(MXFILES)
      CHARACTER*16   CHNDIR,    CHCDIR,    CHPAT    ,CHTOP
      COMMON /HCDIRC/CHCDIR(NLPATM),CHNDIR(NLPATM),CHPAT(NLPATM)
     +              ,CHTOP(NLPATM)
      CHARACTER*80 HFNAME
      COMMON /HCFILE/HFNAME(MXFILES)
*
+KEEP,HCVERS
*CMZ :  4.22/04 02/06/94  08.50.52  by  Rene Brun
*-- Author :
      INTEGER       INSTAL(20),IVERS(5),IDATE(8)
      COMMON/HCVERS/INSTAL,IVERS,IDATE
*
+KEEP,HCUNIT
*CMZ :  4.20/00 17/06/93  13.11.59  by  Rene Brun
*-- Author :
      INTEGER       LOUT,LERR,LINFIT
      COMMON/HCUNIT/LOUT,LERR,LINFIT
*
+KEEP,HCBITS
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      INTEGER           I1,   I2,   I3,   I4,   I5,   I6,   I7,   I8,
     +                  I9,   I10,  I11,  I12,  I13,  I14,  I15,  I16,
     +I17,  I18,  I19,  I20,  I21,  I22,  I23,  I24,  I25,  I26,  I27,
     +I28,  I29,  I30,  I31,  I32,  I33,  I34,  I35,  I123, I230
      COMMON / HCBITS  / I1,   I2,   I3,   I4,   I5,   I6,   I7,   I8,
     +                  I9,   I10,  I11,  I12,  I13,  I14,  I15,  I16,
     +I17,  I18,  I19,  I20,  I21,  I22,  I23,  I24,  I25,  I26,  I27,
     +I28,  I29,  I30,  I31,  I32,  I33,  I34,  I35,  I123, I230
*
+KEEP,HCPRIN
*CMZ :  4.22/04 02/06/94  14.29.18  by  Rene Brun
*-- Author :
      INTEGER       IFW   ,NW    ,NB    ,IH    ,NHT   ,ICN   ,IPONCE,
     +       NH    ,MSTEP ,NOENT ,NOLD  ,IDOLAR,IBLANC,KBINSZ,INO   ,
     +       KSQUEZ,NCOLMA,NCOLPA,NLINPA,       ICBLAC,ICSTAR,ICFUNC,
     +       IDG(42),MAXBIT(30),IDENT(9)
      REAL BIGP
*
      COMMON/HCPRIN/IFW   ,NW    ,NB    ,IH    ,NHT   ,ICN   ,IPONCE,
     +       NH    ,MSTEP ,NOENT ,NOLD  ,IDOLAR,IBLANC,KBINSZ,INO   ,
     +       KSQUEZ,NCOLMA,NCOLPA,NLINPA,BIGP  ,ICBLAC,ICSTAR,ICFUNC,
     +       IDG   ,MAXBIT,IDENT
*
+KEEP,HCFITF
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER(MAXOP=10)
      COMMON/HCFITF/NOPER,LOPER(MAXOP),IFTYPE(MAXOP),NPF(MAXOP)
*
+KEEP,HCFITR
*CMZ :  4.22/04 02/06/94  08.47.30  by  Rene Brun
*-- Author :
      INTEGER       IFTRNG,IFXLOW,IFXUP,IFYLOW,IFYUP
      COMMON/HCFITR/IFTRNG,IFXLOW,IFXUP,IFYLOW,IFYUP
C
+KEEP,HCFIT1
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCFIT1/ NUMEP1,N3,EPS
*
+KEEP,HCTIT
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON/HCTIT/LTIT(40)
*
+KEEP,HCPAR0
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      REAL            PNEF,PNBF,PSEL,PFLV,PLUN,PNBX,PNCX,FNIX,FEPS
      COMMON /HCPAR0/ PNEF,PNBF,PSEL,PFLV,PLUN,PNBX,PNCX,FNIX,FEPS
*
+KEEP,HCPAR1
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCPAR1/ IOPT(8),ND,NP,NPMAX,NBF,NBFMAX,NEF,NCO,NCOMAX
*
+KEEP,HCPAR2
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCPAR2/ COEFF(50),IBASFT(10,50),XMIN(10),XMAX(10),
     +                ALIM(10),BLIM(10)
*
+KEEP,HCPOUT
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCPOUT/ IFLAG,RSSS,R2S,SECO(50),COMIN(50),COMAX(50)
*
+KEEP,HCFIT2
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON/HCFIT2/ENDFLG,NA,INDFLG(5),IFLFUN,NAMFUN,IDIMPN,XFUMIL(10),
     +        NUMEP ,XMIN  ,EPSW  ,ALLCHA,BINWID,WGTMAX,YMIN,BINWIY,
     +       NCHANX,LINEAR,IFLSF ,IFLBUF,IDER,IWEIGH,ITFUM,ISUPIM
*
+KEEP,HCFIT3
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCFIT3/ NPOLYN,IPARAM,IDERIV,IDEROK
*
+KEEP,HCFIT6
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCFIT6/XVAR(10),EPSIF,NUP,NFCNMH,ITPR,IHIS,IMINU,
     +        NX,NY,NPFIT,ILICO,CHIM,IOFSET,IMAT,IBQ(14),ILXE,ILYE,
     +        ILEY,ICSTAT,NFLRET,IDESUM
*
+KEEP,HCFITS
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      INTEGER       NCFITS,NPFITS,NFPAR
      REAL                              FITCHI,FITPAR    ,FITSIG
     +             ,FITDER
      COMMON/HCFITS/NCFITS,NPFITS,NFPAR,FITCHI,FITPAR(35),FITSIG(35)
     +             ,FITDER(35)
      CHARACTER*8 FITNAM
      COMMON/HCFITN/FITNAM(35)
*
+KEEP,HCFITD1.
*CMZ :  4.19/00 28/04/93  11.16.52  by  Rene Brun
*-- Author :
      DOUBLE PRECISION FITPAD,FITFUN
+KEEP,HCFITD.
*CMZ :  4.19/00 28/04/93  11.16.52  by  Rene Brun
*-- Author :
+SEQ,HCFITD1,IF=DOUBLE.
      COMMON/HCFITD/FITPAD(24),FITFUN
*
+KEEP,HCMAIL.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      CHARACTER*128  CHMAIL
      COMMON /HCMAIL/CHMAIL
*
+KEEP,HCNT
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCNT/ IBIPW, IBIPB, IBYPW, ISHBIT
*
+KEEP,HCNTPAR.
*CMZ :  4.20/00 21/06/93  12.39.17  by  Fons Rademakers
*-- Author :
      INTEGER   ZBITS,  ZNDIM,  ZNOENT, ZNPRIM, ZNRZB,  ZIFCON,
     +          ZIFNAM, ZIFCHA, ZIFINT, ZIFREA, ZNWTIT, ZITIT1,
     +          ZNCHRZ, ZDESC,  ZLNAME, ZNAME,  ZARIND, ZRANGE, ZNADDR,
     +          ZIBLOK, ZNBLOK, ZLCONT, ZIFBIT, ZIBANK, ZIFTMP, ZITMP,
     +          ZID,    ZNTMP,  ZNTMP1, ZLINK
      PARAMETER(ZBITS=1,   ZNDIM=2,   ZNOENT=3,  ZNPRIM=4,  ZLCONT=6,
     +          ZNRZB=5,   ZIFCON=7,  ZIFNAM=4,  ZIFCHA=5,  ZIFINT=6,
     +          ZIFREA=7,  ZNWTIT=8,  ZITIT1=9,  ZNCHRZ=13, ZIFBIT=8,
     +          ZDESC=1,   ZLNAME=2,  ZNAME=3,   ZRANGE=4,  ZNADDR=12,
     +          ZARIND=11, ZIBLOK=8,  ZNBLOK=10, ZIBANK=9,  ZIFTMP=11,
     +          ZID=12,    ZITMP=10,  ZNTMP=6,   ZNTMP1=3,  ZLINK=6)
*
+KEEP,HCNTPAW.
*CMZ :  4.21/10 01/03/94  11.54.50  by  Rene Brun
*-- Author :    Fons Rademakers   10/04/93
*
*-- ATTENTION: MAXCR4 must be 50007 in order for variables in $HCBONT to
*--            fit into PAWCR4. When changing any of these parameters
*--            check also $HCBONT.
*
      PARAMETER      (MAXCR8 = 1000, MAXCR4 = 50007, MAXC32 = 1000)
      REAL*8          RVAR8(MAXCR8)
      REAL            RVAR4(MAXCR4)
      INTEGER         IVAR4(MAXCR4)
      LOGICAL         LVAR4(MAXCR4)
      CHARACTER*32    CVAR32(MAXC32)
*
      COMMON /PAWCR8/ RVAR8
      COMMON /PAWCR4/ RVAR4
      COMMON /PAWC32/ CVAR32
*
      EQUIVALENCE (IVAR4, RVAR4)
      EQUIVALENCE (LVAR4, RVAR4)
*
+KEEP,HNTCUR.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HNTCUR/ NTCUR
*
+KEEP,HCSET.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      COMMON /HCSET/ IBSIZE
*
+KEEP,HMAC1.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=60,MBITCH=6,MOUT=L"OUTPUT",HMBIGP=1.E+200)
+KEEP,HMAC2.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=32,MBITCH=8,MOUT=6,HMBIGP=1.E+60)
+KEEP,HMAC3.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=36,MBITCH=9,MOUT=2,HMBIGP=1.E+38)
+KEEP,HMAC4.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=32,MBITCH=8,MOUT=6,HMBIGP=1.E+36)
+KEEP,HMAC5.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=64,MBITCH=8,MOUT=6,HMBIGP=1.E+200)
+KEEP,HMAC6.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      PARAMETER (MBIT=32,MBITCH=8,MOUT=6,HMBIGP=1.E+30)
+KEEP,HMACHINE.
*CMZ :  4.19/00 19/04/93  09.58.06  by  Rene Brun
*-- Author :
+SEQ,HMAC1,IF=CDC.
+SEQ,HMAC2,IF=IBM,NORD.
+SEQ,HMAC3,IF=UNIVAC.
+SEQ,HMAC4,IF=VAX.
+SEQ,HMAC5,IF=CRAY, CONVEX, UNIX, IF=-DOUBLE.
+SEQ,HMAC6,IF=UNIX,IF=DOUBLE.
 
+KEEP,JBYT1.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
      JBYT (IZW,IZP,NZB) = JIBITS (IZW,IZP-1,NZB)
+KEEP,JBYT2.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
*
+KEEP,JBYT3.
*CMZ :  4.19/00 19/04/93  09.55.52  by  Rene Brun
*-- Author :
*
      JBIT (IZZW,IZZP)      = IBITS (IZZW,IZZP-1,1)
      JBYT (IZZW,IZZP,NZZB) = IBITS (IZZW,IZZP-1,NZZB)
+KEEP,JBYT4.
*CMZ :  4.19/00 19/04/93  09.55.52  by  Rene Brun
*-- Author :
*
      JBIT (IZW,IZP)      = AND(RSHIFT(IZW,IZP-1),1)
      JBYT (IZW,IZP,NZB) =  ISHFTR(LSHIFT(IZW,33-IZP-NZB),32-NZB)
+KEEP,JBYT.
*CMZ :  4.21/08 14/02/94  10.53.41  by  Rene Brun
*-- Author :
+SEQ,JBYT1,IF=VAX,ALLIANT.
+SEQ,JBYT2,IF=IBM,NORD,CRAY,CDC,UNIX, IF=-ALLIANT,IF=-MSDOS,IF=-WINNT.
+SEQ,JBYT3,IF=MSDOS,IF=NDP.
+SEQ,JBYT4,IF=MSDOS,WINNT,IF=QF2C.
 
+KEEP,HCQCOM.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
* Basic parameters and data for multiquadric fit.
* VPRINT is true if verbose option selected.
      LOGICAL VPRINT
* NTUPLE is .TRUE. if ntuple is being processed, otherwise .FALSE.
      LOGICAL NTUPLE
* IMQFUN function flag: = 0, no function evaluated yet.
*                       = 1, linear sum of multiquadrics.
*                       = 2, exponential of linear sum of multiquadrics.
* (Note: HQF... routines take account of this, HQD... always calculate the
*    simple sum of multiquadrics.)
      INTEGER IMQFUN
* IDMQ stores current histogram no. when required.
      INTEGER IDMQ
* JMQ, KMQ store current multiquadric basis function nos. when required.
      INTEGER JMQ, KMQ
* NSIG is number of significant points.
      INTEGER NSIG
* NFREE is number of free parameters in the fitting (often equal to NSIG).
      INTEGER NFREE
* Limits and recommended values of no. of significant points.
      INTEGER NSMIN, NSMIN1, NSMIN2, NSMIN3, NSREC1, NSREC2, NSREC3
      PARAMETER (NSMIN1 = 5, NSMIN2 = 10, NSMIN3 = 10)
      PARAMETER (NSREC1 = 15, NSREC2 = 50, NSREC3 = 50)
* NSMAX its maximum no. of significant points.
      INTEGER NSMAX
      PARAMETER (NSMAX = 500)
* NDIM is the number of dimensions - NDMAX is its maximum.
      INTEGER NDIM, NDMAX
      PARAMETER (NDMAX = 3)
* NDIMC is dimensionality of data currently under consideration (<= NDIM).
* NDIMWH is which of the NDIM1 dimensions are currently being considered.
      INTEGER NDIMC, NDIMWH (NDMAX)
* NBINS is no. of bins in each coordinate, NBTOT the total
*   no. of bins in current histogram.
      INTEGER NBINS (NDMAX)
      INTEGER NX, NY, NZ, NBTOT
      EQUIVALENCE (NX, NBINS (1)), (NY, NBINS (2)), (NZ, NBINS (3))
* Similarly, NBINSN is no. of bins for which first significant points where
*   found when surveying Ntuple data.
      INTEGER NBINSN (NDMAX)
      INTEGER NXN, NYN, NZN
      EQUIVALENCE (NXN, NBINSN (1)), (NYN, NBINSN (2)),
     +(NZN, NBINSN (3))
* NNBINn is no. of bins used to bin ntuple data in n-dimensions.
      INTEGER NNBIN1, NNBIN2, NNBIN3
      PARAMETER (NNBIN1 = 100, NNBIN2 = 40, NNBIN3 = 40)
* NMQEVS is no. of events (see also WMQEVS).
      INTEGER NMQEVS
* NMQFUL is no. of histogram bins with non-zero content.
      INTEGER NMQFUL
* NINTVS, NQUADS are no. of intervals and no. of gaussian quadrature points
*   per interval for integration of multiquadric functions.
      INTEGER NINTVS, NQUADS
      PARAMETER (NINTVS = 50, NQUADS = 8)
* LAREA is working space for ZEBRA link maintenance.
* LHQUAD is pointer to parent bank in  Q in /PAWC/ in SEQ HCBOOK.
*  (For bank structure see HQINIT header.)
* LnH and LnV are pointers to current n-D histogram contents and variances.
* LHQCOV is pointer to covariances.
* LHQDER is working bank for double derivatives.
* LHQWK1/2.. are more working banks.
* LHQDJN is pointer to temporary bank holding function values.
* LLAST is a dummy pointer - always last!
      INTEGER LAREA (2), LHQUAD, L1H, L1V, L2H, L2V, L3H, L3V,
     +LHQCOV, LHQDER, LHQWK1, LHQWK2, LHQWK3,
     +LHQDJN, LLAST
*
* SIGGRD contains the gradient of the function with respect to the strengths.
* SIGDEN the (approximate) density of the function at the significant point.
      REAL SIGGRD (NSMAX)
      REAL SIGDEN (NSMAX)
* SIGV contains significant points' coordinate vectors.
      REAL SIGV (NSMAX, NDMAX)
      REAL SIGX (NSMAX), SIGY (NSMAX), SIGZ (NSMAX)
      EQUIVALENCE (SIGX, SIGV), (SIGY, SIGV (1, 2)), (SIGZ, SIGV (1, 3))
* SIGDEL contains the scale parameter Delta for each coordinate.
      REAL SIGDEL (NSMAX)
* SIGVMI, SIGVMA, SIGVBI, SIGVT are lower and upper limits, bin size
*   and total range.
      REAL SIGVMI (NDMAX), SIGVMA (NDMAX), SIGVBI (NDMAX), SIGVT (NDMAX)
      REAL XMI, XMA, DX, DXT, YMI, YMA, DY, DYT, ZMI, ZMA, DZ, DZT
      EQUIVALENCE (XMI, SIGVMI (1)), (XMA, SIGVMA (1))
      EQUIVALENCE (DX,  SIGVBI (1)), (DXT, SIGVT (1))
      EQUIVALENCE (YMI, SIGVMI (2)), (YMA, SIGVMA (2))
      EQUIVALENCE (DY,  SIGVBI (2)), (DYT, SIGVT (2))
      EQUIVALENCE (ZMI, SIGVMI (3)), (ZMA, SIGVMA (3))
      EQUIVALENCE (DZ,  SIGVBI (3)), (DZT, SIGVT (3))
* BINV is used to store current coordinates - usually bin centres, but can
*   be edges 0. or 1.
      REAL BINV (NDMAX)
      REAL XBIN, YBIN, ZBIN
      EQUIVALENCE (XBIN, BINV (1)), (YBIN, BINV (2)), (ZBIN, BINV (3))
* VOLTOT is total "volume" and VOLBIN is "volume" of bin in current histogram.
      REAL VOLTOT, VOLBIN
* WMQEVS is weighted no. of events (see also NMQEVS).
      REAL WMQEVS
* VSCALE scales variances (only if incorrectly assigned errors suspected).
      REAL VSCALE
* VMEAN1, VMEAN2 are mean variance per histogram entry and its square.
      REAL VMEAN1, VMEAN2
* VCONST is a constant multiplying exponential of sum of multiquadrics for
*   Poisson likelihood fitting.
      REAL VCONST
* SENSIT is a sensitivity parameter - normally 1 - which controls the
*   selection of significant points.
      REAL SENSIT
* SLCUT is current value of cut for Laplacian significance.
      REAL SLCUT
* SLRMS is rms of Laplacian significance.
      REAL SLRMS
* SPREAD is a smoothness parameter - normally 1 - which multiplies the
*   scale parameter (radius of curvature).
      REAL SPREAD
* SMALLD is a "small" value of the multiquadric parameter DELTA for edges, etc.
*    (usually set to 1.E-6 in HQUAD, HQUADN).
      REAL SMALLD
* HQMIN, HQMAX, HQFMIN, HQFMAX are current minimum and maximum bin heights and
*   function values (at bin centres).
      REAL HQMIN, HQMAX, HQFMIN, HQFMAX
*
      COMMON /HCQCOM/ SIGGRD, SIGDEN, SIGV, SIGDEL,
     + SIGVMI, SIGVMA, SIGVBI, SIGVT,
     + BINV, VOLTOT, VOLBIN, WMQEVS, VSCALE, VMEAN1, VMEAN2,
     + VCONST, SENSIT, SLCUT, SLRMS, SPREAD, SMALLD,
     + HQMIN, HQMAX, HQFMIN, HQFMAX,
     + IMQFUN, IDMQ, JMQ, KMQ,
     + NSIG, NFREE, NSMIN, NDIM, NDIMC, NDIMWH,
     + NBINS, NBTOT, NBINSN, NMQEVS, NMQFUL,
     + LAREA, LHQUAD, L1H, L1V, L2H, L2V, L3H, L3V,
     + LHQCOV, LHQDER, LHQWK1, LHQWK2, LHQWK3,
     + LHQDJN, LLAST,
     + VPRINT, NTUPLE
 
+KEEP, HCQCOR1.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
* SIGA contains the coefficients of the multiquadric basis functions.
      REAL SIGA (NSMAX)
      COMMON /HCQCOR/ SIGA
+KEEP, HCQCOR2.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
* SIGA contains the coefficients of the multiquadric basis functions.
      DOUBLE PRECISION SIGA (NSMAX)
      COMMON /HCQCOD/ SIGA
 
+KEEP, HCQCOR.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
+SEQ,HCQCOR1,IF=-DOUBLE.
+SEQ,HCQCOR2,IF=DOUBLE.
+KEEP,HCDIFB.
*CMZ :  4.19/00 13/04/93  16.36.40  by  Rene Brun
*-- Author :
C
C----------------------------------------------------------------------
C
C   HDIFFB specific common block
C
C----------------------------------------------------------------------
C
C
C Option string: Contains all possible character options, used as input
C                for the option decoding utility HUOPTC. This returns a
C                1-d array of length the number of options with contents
C                one or zero. One indicates that that option was selected.
C                For example, HUOPTC('A','ABC',SELECTED(3)) would return
C                (1,0,0) in SELECTED array. Likewise, 'CB' would return
C                (0,1,1).
C
C                HDIFFB has 12 possible options, and the resulting 1-d
C                array, OPTS(12) is placed in the HDIFFB common block.
C
C----------------------------------------------------------------------
C
      INTEGER NPARMS
      PARAMETER( NPARMS = 12 )
      CHARACTER*(NPARMS) OPTST
      INTEGER OFLOW, UFLOW, SOPTN, COPTN, AOPTN
      INTEGER NORMD,DEBUG,ZEROS,XUNDR,XOVER,YUNDR,YOVER
C  - possible options string
      PARAMETER( OPTST = 'NDOUSCAZRLTB' )
C     - option N, don't normalize contents
C     - option D, debugging printout
C     - option O, overflow option
C     - option U, underflow option
C     - option S, statistical comparison
C     - option C, compatibility test
C     - option A, absolute test
C     - option Z, skip ref bin = 0
C     - option R, X-Axis overflow
C     - option L, X-Axis underflow
C     - option T, Y-Axis overflow
C     - option B, Y-Axis underflow
      PARAMETER( NORMD = 1 , DEBUG = 2 , OFLOW = 3, UFLOW = 4,
     +  SOPTN = 5, COPTN = 6 , AOPTN = 7 , ZEROS = 8, XOVER = 9,
     +  XUNDR = 10, YOVER = 11, YUNDR = 12)
C
C----------------------------------------------------------------------
C    Global HDIFFB declarations
C----------------------------------------------------------------------
C
      INTEGER DUMPDV,IDR,IDD,BEGINI,BEGINJ,ENDI,ENDJ
      INTEGER OPTS(NPARMS),XSIZ
      REAL    LAMBDA,LNBIGP,ACDIGT
      LOGICAL TWODIM,WEIGHR,WEIGHD,PROFIL,PSDMR,PSDMD
 
      COMMON/HCDIFB/TWODIM,WEIGHR,WEIGHD,PROFIL,PSDMR,PSDMD,DUMPDV,
     +  IDR,IDD,BEGINI,BEGINJ,ENDI,ENDJ,LAMBDA,OPTS,XSIZ,LNBIGP,ACDIGT