Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / control-2.3.52 / strseq.m

diff --git a/octave_packages/control-2.3.52/strseq.m b/octave_packages/control-2.3.52/strseq.m
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+## Copyright (C) 2009, 2010, 2012   Lukas F. Reichlin
+##
+## This file is part of LTI Syncope.
+##
+## LTI Syncope 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.
+##
+## LTI Syncope 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 LTI Syncope.  If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{strvec} =} strseq (@var{str}, @var{idx})
+## Return a cell vector of indexed strings by appending the indices @var{idx}
+## to the string @var{str}.
+##
+## @example
+## strseq ("x", 1:3) = @{"x1"; "x2"; "x3"@}
+## strseq ("u", [1, 2, 5]) = @{"u1"; "u2"; "u5"@}
+## @end example
+## @end deftypefn
+
+## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
+## Created: September 2009
+## Version: 0.3
+
+function strvec = strseq (str, idx)
+
+  if (nargin != 2 || ! ischar (str) || ! isnumeric (idx))
+    print_usage ();
+  endif
+
+  strvec = arrayfun (@(x) sprintf ("%s%d", str, x), idx(:), "uniformoutput", false);
+
+endfunction
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