1## Copyright (C) 2006 Michel D. Schmid <michaelschmid@users.sourceforge.net> 2## 3## 4## This program is free software; you can redistribute it and/or modify it 5## under the terms of the GNU General Public License as published by 6## the Free Software Foundation; either version 2, or (at your option) 7## any later version. 8## 9## This program is distributed in the hope that it will be useful, but 10## WITHOUT ANY WARRANTY; without even the implied warranty of 11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12## General Public License for more details. 13## 14## You should have received a copy of the GNU General Public License 15## along with this program; see the file COPYING. If not, see 16## <http://www.gnu.org/licenses/>. 17 18## -*- texinfo -*- 19## @deftypefn {Function File} {}[@var{Pp},@var{Tt}] = poststd(@var{Pn},@var{meanp},,@var{stdP},@var{Tn},@var{meanT},@var{stdT}) 20## @code{poststd} postprocesses the data which has been preprocessed by @code{prestd}. 21## @end deftypefn 22 23## @seealso{prestd,trastd} 24 25## Author: Michel D. Schmid 26 27function [Pp,Tt] = poststd(Pn,meanp,stdp,Tn,meant,stdt) 28 29 ## check range of input arguments 30 error(nargchk(3,6,nargin)) 31 if (nargin==4) 32 error("4 input arguments are not allowed!"); 33 endif 34 if (nargin==5) 35 error("5 input arguments are not allowed!"); 36 endif 37 38 ## do first inputs 39 ## set all standard deviations which are zero to 1 40 [nRowsII, nColumnsII] = size(Pn); 41 rowZeros = zeros(nRowsII,1); 42 findZeros = find(stdp==0); 43 rowZeros(findZeros)=1; 44 nequal = !rowZeros; 45 if (sum(rowZeros) != 0) 46 warning("Some standard deviations are zero. Those inputs won't be transformed."); 47 meanpZero = meanp.*nequal; 48 stdpZero = stdp.*nequal + 1*rowZeros; 49 else 50 meanpZero = meanp; 51 stdpZero = stdp; 52 endif 53 54 ## calculate the postprocessed inputs 55 nColumnsIIone = ones(1,nColumnsII); 56 Pp = (stdpZero*nColumnsIIone).*Pn + meanpZero*nColumnsIIone; 57 58 ## do also targets 59 if ( nargin==6 ) 60 # now set all standard deviations which are zero to 1 61 [nRowsIII, nColumnsIII] = size(stdt); 62 rowZeros = zeros(nRowsIII,1); 63 findZeros = find(stdt==0); 64 rowZeros(findZeros)=1; 65 nequal = !rowZeros; 66 if (sum(rowZeros) != 0) 67 warning("Some standard deviations are zero. Those targets won't be transformed."); 68 meantZero = meant.*nequal; 69 stdtZero = stdt.*nequal + 1*rowZeros; 70 else 71 meantZero = meant; 72 stdtZero = stdt; 73 endif 74 75 ## calculate the postprocessed targets 76 nColumnsIIIone = ones(1,nColumnsIII); 77 Tt = (stdtZero*nColumnsIIIone).*Tn + meantZero*nColumnsIIIone; 78 endif 79 80endfunction