Mercurial > octave-nkf
view scripts/statistics/base/logit.m @ 6754:451b346d8c2f
[project @ 2007-06-25 17:31:46 by jwe]
author | jwe |
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date | Mon, 25 Jun 2007 17:31:47 +0000 |
parents | 34f96dd5441b |
children | b6e2ab6a8421 |
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## Copyright (C) 1995, 1996, 1997 Kurt Hornik ## ## This file is part of Octave. ## ## Octave 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 2, or (at your option) ## any later version. ## ## Octave 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 Octave; see the file COPYING. If not, write to the Free ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA ## 02110-1301, USA. ## -*- texinfo -*- ## @deftypefn {Function File} {} logit (@var{p}) ## For each component of @var{p}, return the logit of @var{p} defined as ## @iftex ## @tex ## $$ ## {\rm logit}(p) = \log\Big({p \over 1-p}\Big) ## $$ ## @end tex ## @ifnottex ## @example ## logit(@var{p}) = log (@var{p} / (1-@var{p})) ## @end example ## @end ifnottex ## @end deftypefn ## Author: KH <Kurt.Hornik@wu-wien.ac.at> ## Description: Logit transformation function y = logit (p) if (nargin == 1) y = logistic_inv (p); else print_usage (); endif endfunction