/usr/share/octave/packages/3.2/time-1.0.9/datefind.m is in octave-time 1.0.9-3.
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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 48 | ## Copyright (C) 2008 Bill Denney
##
## This software is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## This software 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
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this software; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {indices =} datefind (subset, superset, tol)
##
## Find any instances of the @code{subset} in the @code{superset} with
## the @code{tol}erance. @code{tol} is 0 by default.
##
## @seealso{date, datenum}
## @end deftypefn
## Author: Bill Denney <bill@denney.ws>
## Created: 21 Jan 2008
function idx = datefind (subset, superset, tol=0)
if (nargin < 2 || nargin > 3)
print_usage ();
elseif ! isscalar (tol)
error ("datefind: tol must be a scalar")
endif
idx = [];
for i = 1:numel (superset)
if any (subset(:) - tol <= superset(i) & superset(i) <= subset(:) + tol)
idx(end+1, 1) = i;
endif
endfor
endfunction
## Tests
%!assert (datefind (datenum (1999, 7, [10;20]), datenum (1999, 7, 1:31)), [10;20])
%!assert (datefind (datenum (1999, 7, [10;20]), datenum (1999, 7, 1:31), 1), [9;10;11;19;20;21])
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