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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | ! $Id: x05f.f90 12097 2011-12-07 08:56:34Z arjenmarkus $
! Draws a histogram from sample data
!
! Copyright (C) 2004 Alan W. Irwin
!
! This file is part of PLplot.
!
! PLplot is free software; you can redistribute it and/or modify
! it under the terms of the GNU Library General Public License as
! published by the Free Software Foundation; either version 2 of the
! License, or (at your option) any later version.
!
! PLplot is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Library General Public License for more details.
!
! You should have received a copy of the GNU Library General Public
! License along with PLplot; if not, write to the Free Software
! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
program x04f95
use plplot, PI => PL_PI
use plf95demolib
implicit none
integer, parameter :: NPTS = 2047
real(kind=plflt) :: data(NPTS), delta
! Process command-line arguments
call plparseopts(PL_PARSE_FULL)
! Initialize plplot
call plinit()
! Fill up data points
delta = 2.0_plflt * PI / dble (NPTS)
data = sin(delta*arange(0, NPTS))
call plcol0(1)
call plhist(data, -1.1_plflt, 1.1_plflt, 44, 0)
call plcol0(2)
call pllab('#frValue','#frFrequency', &
'#frPLplot Example 5 - Probability function of Oscillator')
call plend
end program x04f95
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