Mercurial > octave-nkf
view doc/interpreter/set.txi @ 12770:3666e8e6f96e stable release-3-4-2
Version 3.4.2 released.
* configure.ac (AC_INIT): Version is now 3.4.2.
(OCTAVE_RELEASE_DATE): Now 2011-06-24.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 24 Jun 2011 10:36:40 -0400 |
parents | d5f50ea57869 |
children | 72c96de7a403 |
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@c Copyright (C) 1996-2011 John W. Eaton @c @c This file is part of Octave. @c @c Octave is free software; you can redistribute it and/or modify it @c under the terms of the GNU General Public License as published by the @c Free Software Foundation; either version 3 of the License, or (at @c your option) any later version. @c @c Octave is distributed in the hope that it will be useful, but WITHOUT @c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or @c FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License @c for more details. @c @c You should have received a copy of the GNU General Public License @c along with Octave; see the file COPYING. If not, see @c <http://www.gnu.org/licenses/>. @node Sets @chapter Sets Octave has a limited number of functions for managing sets of data, where a set is defined as a collection of unique elements. In Octave a set is represented as a vector of numbers. @DOCSTRING(unique) @menu * Set Operations:: @end menu @node Set Operations @section Set Operations Octave supports the basic set operations. That is, Octave can compute the union, intersection, and difference of two sets. Octave also supports the @emph{Exclusive Or} set operation, and membership determination. The functions for set operations all work in pretty much the same way. As an example, assume that @code{x} and @code{y} contains two sets, then @example union(x, y) @end example @noindent computes the union of the two sets. @DOCSTRING(ismember) @DOCSTRING(union) @DOCSTRING(intersect) @DOCSTRING(setdiff) @DOCSTRING(setxor) @DOCSTRING(powerset)