|
7017
|
1 ## Copyright (C) 1996, 1997, 2002, 2004, 2005, 2006, 2007 John W. Eaton |
|
4026
|
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 |
|
7016
|
7 ## the Free Software Foundation; either version 3 of the License, or (at |
|
|
8 ## your option) any later version. |
|
4026
|
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 |
|
7016
|
16 ## along with Octave; see the file COPYING. If not, see |
|
|
17 ## <http://www.gnu.org/licenses/>. |
|
4026
|
18 |
|
|
19 ## -*- texinfo -*- |
|
|
20 ## @deftypefn {Function File} {} isvector (@var{a}) |
|
|
21 ## Return 1 if @var{a} is a vector. Otherwise, return 0. |
|
5642
|
22 ## @seealso{size, rows, columns, length, isscalar, ismatrix} |
|
4026
|
23 ## @end deftypefn |
|
|
24 |
|
|
25 ## Author: jwe |
|
|
26 |
|
|
27 function retval = isvector (x) |
|
|
28 |
|
|
29 retval = 0; |
|
|
30 |
|
|
31 if (nargin == 1) |
|
5459
|
32 sz = size (x); |
|
5721
|
33 retval = (ndims (x) == 2 && (sz(1) == 1 || sz(2) == 1)); |
|
4026
|
34 else |
|
6046
|
35 print_usage (); |
|
4026
|
36 endif |
|
|
37 |
|
|
38 endfunction |
|
7411
|
39 |
|
|
40 %!assert(isvector (1)); |
|
|
41 |
|
|
42 %!assert(isvector ([1; 2; 3])); |
|
|
43 |
|
|
44 %!assert(!(isvector ([]))); |
|
|
45 |
|
|
46 %!assert(!(isvector ([1, 2; 3, 4]))); |
|
|
47 |
|
|
48 %!test |
|
|
49 %! warn_str_to_num = 0; |
|
|
50 %! assert((isvector ("t"))); |
|
|
51 |
|
|
52 %!test |
|
|
53 %! warn_str_to_num = 0; |
|
|
54 %! assert((isvector ("test"))); |
|
|
55 |
|
|
56 %!assert(!(isvector (["test"; "ing"]))); |
|
|
57 |
|
|
58 %!test |
|
|
59 %! s.a = 1; |
|
|
60 %! assert((isvector (s))); |
|
|
61 |
|
|
62 %!error isvector (); |
|
|
63 |
|
|
64 %!error isvector ([1, 2], 2); |
|
|
65 |
