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comparison scripts/time/weekday.m @ 5687:a2902024bc4e

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[project @ 2006-03-16 20:22:40 by jwe]
author jwe
date Thu, 16 Mar 2006 20:22:41 +0000
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children 080c08b192d8
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5686:e7790bb14cfc 5687:a2902024bc4e
1 ## Copyright (C) 2000, 2001, 2004, 2005 Paul Kienzle
2 ##
3 ## This file is part of Octave.
4 ##
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 2, or (at your option)
8 ## any later version.
9 ##
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
14 ##
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, write to the Free
17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 ## 02110-1301, USA.
19
20 ## -*- texinfo -*-
21 ## @deftypefn {Function File} {[@var{n}, @var{s}] =} weekday (@var{d}, [@var{form}])
22 ## Return the day of week as a number in @var{n} and a string in @var{s},
23 ## for example @code{[1, "Sun"]}, @code{[2, "Mon"]}, @dots{}, or
24 ## @code{[7, "Sat"]}.
25 ##
26 ## @var{d} is a serial date number or a date string.
27 ##
28 ## If the string @var{form} is given and is @code{"long"}, @var{s} will
29 ## contain the full name of the weekday; otherwise (or if @var{form} is
30 ## @code{"short"}), @var{s} will contain the abbreviated name of the weekday.
31 ## @seealso{datenum, datevec, eomday}
32 ## @end deftypefn
33
34 ## Author: pkienzle <pkienzle@users.sf.net>
35 ## Created: 10 October 2001 (CVS)
36 ## Adapted-By: William Poetra Yoga Hadisoeseno <williampoetra@gmail.com>
37
38 function [n, s] = weekday (d, form)
39
40 if (nargin < 1 || nargin > 2)
41 usage("[n, s] = weekday (d, [form])");
42 endif
43
44 if (nargin < 2)
45 form = "short";
46 endif
47
48 v = datevec (d);
49 t = strptime (sprintf ("%d-%d-%d", v(3), v(2), v(1)), "%d-%m-%Y");
50
51 n = t.wday + 1;
52
53 if (nargout > 1)
54 if (strcmpi (form, "long"))
55 s = strftime ("%A", t);
56 else
57 s = strftime ("%a", t);
58 endif
59 endif
60
61 endfunction
62
63 # tests
64 %!assert(weekday(728647),2)
65 %!assert(weekday('19-Dec-1994'),2)
66 # demos
67 %!demo
68 %! [n, s] = weekday (now ())
69 %!demo
70 %! [n, s] = weekday (728647)
71 %!demo
72 %! [n, s] = weekday ('19-Dec-1994')