Mercurial > octave
annotate libinterp/corefcn/sub2ind.cc @ 23586:f6c5db0a02e7
maint: Deprecate is_numeric_type and replace with isnumeric.
* ov.h (is_numeric_type): Use OCTAVE_DEPRECATED macro around function.
* ov.h (isnumeric): New function.
* make_int.cc, besselj.cc, cellfun.cc, data.cc, dot.cc, file-io.cc,
graphics.cc, load-path.cc, lookup.cc, lu.cc, mex.cc, mgorth.cc, oct-hist.cc,
pr-output.cc, schur.cc, sparse.cc, sqrtm.cc, sub2ind.cc, typecast.cc, utils.cc,
chol.cc, qr.cc, ov-base-diag.h, ov-base-mat.h, ov-base-scalar.h,
ov-base-sparse.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-mat.h,
ov-bool-sparse.h, ov-bool.h, ov-cell.h, ov-class.cc, ov-fcn-inline.cc,
ov-lazy-idx.h, ov-perm.h, ov-range.h, ov-str-mat.h, ov-usr-fcn.cc, bp-table.cc:
Replace instances of is_numeric_type with isnumeric.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 13 Jun 2017 10:20:55 -0700 |
parents | 3a730821e4a2 |
children | 194eb4bd202b |
rev | line source |
---|---|
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
1 /* |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
2 |
23219
3ac9f9ecfae5
maint: Update copyright dates.
John W. Eaton <jwe@octave.org>
parents:
23200
diff
changeset
|
3 Copyright (C) 2009-2017 VZLU Prague |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
4 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
5 This file is part of Octave. |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
6 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
7 Octave is free software; you can redistribute it and/or modify it |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
8 under the terms of the GNU General Public License as published by |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
9 the Free Software Foundation; either version 3 of the License, or |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
10 (at your option) any later version. |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
11 |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
12 Octave is distributed in the hope that it will be useful, but |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
13 WITHOUT ANY WARRANTY; without even the implied warranty of |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
15 GNU General Public License for more details. |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
16 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
17 You should have received a copy of the GNU General Public License |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
18 along with Octave; see the file COPYING. If not, see |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
19 <http://www.gnu.org/licenses/>. |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
20 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
21 */ |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
22 |
21724
aba2e6293dd8
use "#if ..." consistently instead of "#ifdef" and "#ifndef"
John W. Eaton <jwe@octave.org>
parents:
21660
diff
changeset
|
23 #if defined (HAVE_CONFIG_H) |
21301
40de9f8f23a6
Use '#include "config.h"' rather than <config.h>.
Rik <rik@octave.org>
parents:
21200
diff
changeset
|
24 # include "config.h" |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
25 #endif |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
26 |
19269
65554f5847ac
don't include oct-locbuf.h in header files unnecessarily
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
27 #include "Array-util.h" |
65554f5847ac
don't include oct-locbuf.h in header files unnecessarily
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
28 #include "oct-locbuf.h" |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
29 #include "quit.h" |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
30 |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
31 #include "defun.h" |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
32 #include "error.h" |
21100
e39e05d90788
Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents:
21055
diff
changeset
|
33 #include "errwarn.h" |
20940
48b2ad5ee801
maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity.
Rik <rik@octave.org>
parents:
20939
diff
changeset
|
34 #include "ovl.h" |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
35 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
36 |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11570
diff
changeset
|
37 static dim_vector |
10258 | 38 get_dim_vector (const octave_value& val, const char *name) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
39 { |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
40 RowVector dimsv = val.row_vector_value (false, true); |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
41 dim_vector dv; |
20232
a9574e3c6e9e
Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
20172
diff
changeset
|
42 octave_idx_type n = dimsv.numel (); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
43 |
9666
a531dec450c4
allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
9479
diff
changeset
|
44 if (n < 1) |
12483
7a5aacf65f81
Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
45 error ("%s: dimension vector DIMS must not be empty", name); |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
46 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
47 dv.resize (std::max (n, static_cast<octave_idx_type> (2))); |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
48 dv(1) = 1; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
49 for (octave_idx_type i = 0; i < n; i++) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
50 { |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
51 octave_idx_type ii = dimsv(i); |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
52 if (ii == dimsv(i) && ii >= 0) |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
53 dv(i) = ii; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
54 else |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
55 error ("%s: dimension vector DIMS must contain integers", name); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
56 } |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
57 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
58 return dv; |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
59 } |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
60 |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
61 DEFUN (sub2ind, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
62 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
63 @deftypefn {} {@var{ind} =} sub2ind (@var{dims}, @var{i}, @var{j}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
64 @deftypefnx {} {@var{ind} =} sub2ind (@var{dims}, @var{s1}, @var{s2}, @dots{}, @var{sN}) |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
65 Convert subscripts to linear indices. |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
66 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
67 The input @var{dims} is a dimension vector where each element is the size of |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
68 the array in the respective dimension (@pxref{XREFsize,,size}). The remaining |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
69 inputs are scalars or vectors of subscripts to be converted. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
70 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
71 The output vector @var{ind} contains the converted linear indices. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
72 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
73 Background: Array elements can be specified either by a linear index which |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
74 starts at 1 and runs through the number of elements in the array, or they may |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
75 be specified with subscripts for the row, column, page, etc. The functions |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
76 @code{ind2sub} and @code{sub2ind} interconvert between the two forms. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
77 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
78 The linear index traverses dimension 1 (rows), then dimension 2 (columns), then |
23565
3a730821e4a2
doc: Peridoc grammarcheck of documentation.
Rik <rik@octave.org>
parents:
23220
diff
changeset
|
79 dimension 3 (pages), etc.@: until it has numbered all of the elements. |
3a730821e4a2
doc: Peridoc grammarcheck of documentation.
Rik <rik@octave.org>
parents:
23220
diff
changeset
|
80 Consider the following 3-by-3 matrices: |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
81 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
82 @example |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
83 @group |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
84 [(1,1), (1,2), (1,3)] [1, 4, 7] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
85 [(2,1), (2,2), (2,3)] ==> [2, 5, 8] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
86 [(3,1), (3,2), (3,3)] [3, 6, 9] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
87 @end group |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
88 @end example |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
89 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
90 @noindent |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
91 The left matrix contains the subscript tuples for each matrix element. The |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
92 right matrix shows the linear indices for the same matrix. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
93 |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
94 The following example shows how to convert the two-dimensional indices |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
95 @code{(2,1)} and @code{(2,3)} of a 3-by-3 matrix to linear indices with a |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
96 single call to @code{sub2ind}. |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
97 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
98 @example |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
99 @group |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
100 s1 = [2, 2]; |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
101 s2 = [1, 3]; |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
102 ind = sub2ind ([3, 3], s1, s2) |
22851
6eb581b597bc
doc: Add missing change from cset 5e111d533c99
Rik <rik@octave.org>
parents:
22850
diff
changeset
|
103 @result{} ind = 2 8 |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
104 @end group |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
105 @end example |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
106 @seealso{ind2sub, size} |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
107 @end deftypefn */) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
108 { |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
109 int nargin = args.length (); |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
110 |
9666
a531dec450c4
allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
9479
diff
changeset
|
111 if (nargin < 2) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
112 print_usage (); |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
113 |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
114 dim_vector dv = get_dim_vector (args(0), "sub2ind").redim (nargin - 1); |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
115 Array<idx_vector> idxa (dim_vector (nargin-1, 1)); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
116 |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
117 for (int j = 0; j < nargin - 1; j++) |
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
118 { |
23586
f6c5db0a02e7
maint: Deprecate is_numeric_type and replace with isnumeric.
Rik <rik@octave.org>
parents:
23565
diff
changeset
|
119 if (! args(j+1).isnumeric ()) |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
120 error ("sub2ind: subscripts must be numeric"); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
121 |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
122 try |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
123 { |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
124 idxa(j) = args(j+1).index_vector (); |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20542
diff
changeset
|
125 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
126 if (j > 0 && args(j+1).dims () != args(1).dims ()) |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
127 error ("sub2ind: all subscripts must be of the same size"); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
128 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22086
diff
changeset
|
129 catch (octave::index_exception& e) |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
130 { |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
131 e.set_pos_if_unset (nargin-1, j+1); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
132 e.set_var (); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
133 std::string msg = e.message (); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
134 error_with_id (e.err_id (), msg.c_str ()); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
135 } |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
136 } |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
137 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
138 return ovl (sub2ind (dv, idxa)); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
139 } |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
140 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
141 /* |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
142 ## Test evaluation |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
143 %!test |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
144 %! s1 = [ 1 1 1 1 ; 2 2 2 2 ]; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
145 %! s2 = [ 1 1 2 2 ; 1 1 2 2 ]; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
146 %! s3 = [ 1 2 1 2 ; 1 2 1 2 ]; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
147 %! in = [ 1 101 11 111 ; 2 102 12 112 ]; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
148 %! assert (sub2ind ([10 10 10], s1, s2, s3), in); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
149 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
150 # Test low index |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
151 %!assert (sub2ind ([10 10 10], 1, 1, 1), 1) |
20542
dd6345fd8a97
use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
20232
diff
changeset
|
152 %!error <index \(0,_,_\)> sub2ind ([10 10 10], 0, 1, 1) |
dd6345fd8a97
use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
20232
diff
changeset
|
153 %!error <index \(_,0,_\)> sub2ind ([10 10 10], 1, 0, 1) |
dd6345fd8a97
use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
20232
diff
changeset
|
154 %!error <index \(_,_,0\)> sub2ind ([10 10 10], 1, 1, 0) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
155 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
156 # Test high index |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
157 %!assert (sub2ind ([10 10 10], 10, 10, 10), 1000) |
20795
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
158 %!error <index \(11,_,_\): out of bound 10> sub2ind ([10 10 10], 11, 10, 10) |
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
159 %!error <index \(_,11,_\): out of bound 10> sub2ind ([10 10 10], 10, 11, 10) |
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
160 %!error <index \(_,_,11\): out of bound 10> sub2ind ([10 10 10], 10, 10, 11) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
161 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
162 # Test high index in the trailing dimensions |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
163 %!assert (sub2ind ([10, 1], 2, 1, 1), 2) |
20795
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
164 %!error <index \(_,2,_\): out of bound 1> sub2ind ([10, 1], 1, 2, 1) |
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
165 %!error <index \(_,_,2\): out of bound 1> sub2ind ([10, 1], 1, 1, 2) |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
166 %!assert (sub2ind ([10 10], 2, 2, 1), 12) |
20795
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
167 %!error <index \(_,_,2\): out of bound 1> sub2ind ([10 10], 2, 1, 2) |
ba2367658dc8
Use ':' rather than ';' in error messages from bad indexing (bug #46536).
Rik <rik@octave.org>
parents:
20715
diff
changeset
|
168 %!error <index \(_,_,2\): out of bound 1> sub2ind ([10 10], 1, 2, 2) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
169 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
170 # Test handling of empty arguments |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
171 %!assert (sub2ind ([10 10], zeros (0,0), zeros (0,0)), zeros (0,0)) |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
172 %!assert (sub2ind ([10 10], zeros (2,0), zeros (2,0)), zeros (2,0)) |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
173 %!assert (sub2ind ([10 10], zeros (0,2), zeros (0,2)), zeros (0,2)) |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
174 %!error <all subscripts .* same size> sub2ind ([10 10 10], zeros (0,2), zeros (2,0)) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
175 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
176 # Test handling of arguments of different size |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
177 %!error <all subscripts .* same size> sub2ind ([10 10], ones (1,2), ones (1,3)) |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
178 %!error <all subscripts .* same size> sub2ind ([10 10], ones (1,2), ones (2,1)) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
179 |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
180 ## Test input validation |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14360
diff
changeset
|
181 %!error <dimension vector> sub2ind ([10 10.5], 1, 1) |
20542
dd6345fd8a97
use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
20232
diff
changeset
|
182 %!error <index \(1.5,_\)> sub2ind ([10 10], 1.5, 1) |
dd6345fd8a97
use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
20232
diff
changeset
|
183 %!error <index \(_,1.5\)> sub2ind ([10 10], 1, 1.5) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
184 */ |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
185 |
15039
e753177cde93
maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents:
14501
diff
changeset
|
186 DEFUN (ind2sub, args, nargout, |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
187 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
188 @deftypefn {} {[@var{s1}, @var{s2}, @dots{}, @var{sN}] =} ind2sub (@var{dims}, @var{ind}) |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
189 Convert linear indices to subscripts. |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
190 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
191 The input @var{dims} is a dimension vector where each element is the size of |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
192 the array in the respective dimension (@pxref{XREFsize,,size}). The second |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
193 input @var{ind} contains linear indies to be converted. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
194 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
195 The outputs @var{s1}, @dots{}, @var{sN} contain the converted subscripts. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
196 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
197 Background: Array elements can be specified either by a linear index which |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
198 starts at 1 and runs through the number of elements in the array, or they may |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
199 be specified with subscripts for the row, column, page, etc. The functions |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
200 @code{ind2sub} and @code{sub2ind} interconvert between the two forms. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
201 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
202 The linear index traverses dimension 1 (rows), then dimension 2 (columns), then |
23565
3a730821e4a2
doc: Peridoc grammarcheck of documentation.
Rik <rik@octave.org>
parents:
23220
diff
changeset
|
203 dimension 3 (pages), etc.@: until it has numbered all of the elements. |
3a730821e4a2
doc: Peridoc grammarcheck of documentation.
Rik <rik@octave.org>
parents:
23220
diff
changeset
|
204 Consider the following 3-by-3 matrices: |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
205 |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
206 @example |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
207 @group |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
208 [1, 4, 7] [(1,1), (1,2), (1,3)] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
209 [2, 5, 8] ==> [(2,1), (2,2), (2,3)] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
210 [3, 6, 9] [(3,1), (3,2), (3,3)] |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
211 @end group |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
212 @end example |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
213 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
214 @noindent |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
215 The left matrix contains the linear indices for each matrix element. The right |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
216 matrix shows the subscript tuples for the same matrix. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
217 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
218 The following example shows how to convert the two-dimensional indices |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
219 @code{(2,1)} and @code{(2,3)} of a 3-by-3 matrix to linear indices with a |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
220 single call to @code{sub2ind}. |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
221 |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
222 The following example shows how to convert the linear indices @code{2} and |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
223 @code{8} in a 3-by-3 matrix into subscripts. |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
224 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
225 @example |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
226 @group |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
227 ind = [2, 8]; |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
228 [r, c] = ind2sub ([3, 3], ind) |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
229 @result{} r = 2 2 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
230 @result{} c = 1 3 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
231 @end group |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
232 @end example |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
233 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
234 If the number of output subscripts exceeds the number of dimensions, the |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
235 exceeded dimensions are set to @code{1}. On the other hand, if fewer |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
236 subscripts than dimensions are provided, the exceeding dimensions are merged |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
237 into the final requested dimension. For clarity, consider the following |
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
238 examples: |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
239 |
23200
895b8edb4f3c
doc: Fix build of docs broken in sub2ind (bug #50348).
Ernst Reissner <rei3ner@arcor.de>
parents:
23083
diff
changeset
|
240 @example |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
241 @group |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
242 ind = [2, 8]; |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
243 dims = [3, 3]; |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
244 ## same as dims = [3, 3, 1] |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
245 [r, c, s] = ind2sub (dims, ind) |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
246 @result{} r = 2 2 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
247 @result{} c = 1 3 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
248 @result{} s = 1 1 |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
249 ## same as dims = [9] |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
250 r = ind2sub (dims, ind) |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
251 @result{} r = 2 8 |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
252 @end group |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
253 @end example |
22850
5e111d533c99
doc: Rewrite docstrings for sub2ind and ind2sub.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
254 @seealso{ind2sub, size} |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
255 @end deftypefn */) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
256 { |
20819
f428cbe7576f
eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents:
20801
diff
changeset
|
257 if (args.length () != 2) |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
258 print_usage (); |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
259 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
260 octave_value_list retval; |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
261 |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
262 // Redimension to provided number of subscripts. |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
263 dim_vector dv = get_dim_vector (args(0), "ind2sub").redim (nargout); |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20542
diff
changeset
|
264 |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
265 try |
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
266 { |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
267 retval = Array<octave_value> (ind2sub (dv, args(1).index_vector ())); |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
268 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22086
diff
changeset
|
269 catch (const octave::index_exception& e) |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20795
diff
changeset
|
270 { |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
271 error ("ind2sub: Invalid index %s. %s", e.idx ().c_str (), |
22407
34ce5be04942
maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents:
22327
diff
changeset
|
272 e.details ().c_str ()); |
9479
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
273 } |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
274 |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
275 return retval; |
d9716e3ee0dd
supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff
changeset
|
276 } |
22086
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
277 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
278 /* |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
279 ## Examples |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
280 %!test |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
281 %! [r, c] = ind2sub ([3, 3], [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
282 %! assert (r, [2, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
283 %! assert (c, [1, 3]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
284 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
285 %!test |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
286 %! [r, c, s] = ind2sub ([3, 3], [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
287 %! assert (r, [2, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
288 %! assert (c, [1, 3]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
289 %! assert (s, [1, 1]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
290 %! [r, c, s] = ind2sub ([3, 3, 1], [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
291 %! assert (r, [2, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
292 %! assert (c, [1, 3]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
293 %! assert (s, [1, 1]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
294 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
295 %!test |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
296 %! r = ind2sub ([3, 3], [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
297 %! assert (r, [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
298 %! r = ind2sub (9, [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
299 %! assert (r, [2, 8]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
300 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
301 ## 3-dimensional test |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
302 %!test |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
303 %! [r, c, s] = ind2sub ([2, 2, 2], 1:8); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
304 %! assert (r, [1, 2, 1, 2, 1, 2, 1, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
305 %! assert (c, [1, 1, 2, 2, 1, 1, 2, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
306 %! assert (s, [1, 1, 1, 1, 2, 2, 2, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
307 %! [r, c] = ind2sub ([2, 2, 2], 1:8); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
308 %! assert (r, [1, 2, 1, 2, 1, 2, 1, 2]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
309 %! assert (c, [1, 1, 2, 2, 3, 3, 4, 4]); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
310 %! r = ind2sub ([2, 2, 2], 1:8); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
311 %! assert (r, 1:8); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
312 |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
313 %!error <DIMS must contain integers> ind2sub ([2, -2], 3); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
314 %!error <index out of range> ind2sub ([2, 2, 2], 1:9); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
315 %!error <Invalid index> ind2sub ([2, 2, 2], -1:8); |
67a44207da71
ind2sub: Ensure Matlab compatibility and improve documentation (bug #48092).
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
21966
diff
changeset
|
316 */ |