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
49
|
## Copyright (C) 2011-2025 L. Markowsky <lmarkowsky@gmail.com>
##
## This file is part of the fuzzy-logic-toolkit.
##
## The fuzzy-logic-toolkit 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.
##
## The fuzzy-logic-toolkit 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 the fuzzy-logic-toolkit; see the file COPYING. If not,
## see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{y} =} is_var_index (@var{fis}, @var{in_or_out}, @var{var_index})
##
## If @var{in_or_out} == 'input', return true if @var{var_index} is a valid input
## variable index for the given FIS structure, and return false otherwise.
##
## If @var{in_or_out} == 'output', return true if @var{var_index} is a valid output
## variable index for the given FIS structure, and return false otherwise.
##
## is_var_index is a private function that localizes the test for valid FIS
## input and output variable indices. The arguments @var{fis} and
## @var{in_or_out} are assumed to be valid.
##
## @end deftypefn
## Author: L. Markowsky
## Keywords: fuzzy-logic-toolkit fuzzy private parameter-test
## Directory: fuzzy-logic-toolkit/inst/private/
## Filename: is_var_index.m
## Last-Modified: 10 Jun 2024
function y = is_var_index (fis, in_or_out, var_index)
y = is_int (var_index) && (var_index >= 1);
if (strcmp (in_or_out, 'input'))
y = y && (var_index <= length (fis.input));
else
y = y && (var_index <= length (fis.output));
endif
endfunction
|
