Home > fmri > utils > reset_xCon.m

reset_xCon

PURPOSE ^

[xCon] = reset_xCon(stats_dir);

SYNOPSIS ^

function [xCon] = reset_xCon(stats_dir)

DESCRIPTION ^

  [xCon] = reset_xCon(stats_dir);

  Clobbers and initializes an xCon.mat file that is created during an SPM99
  analysis.

  stats_dir is the name of the analysis directory that contains the SPM.mat
  and xCon.mat files.

  This script is particularly useful when using the SPM99 batch mode in a
  situation where you change the contrasts you are computing and you want to
  flush out all of the previous contrasts without having to run the whole
  analysis over again, i.e. you just want to evaluate the updated set of
  contrasts. 

  Lines that initialize the xCon structure were pulled from the spm_spm.m
  script.

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [xCon] = reset_xCon(stats_dir)
0002 %  [xCon] = reset_xCon(stats_dir);
0003 %
0004 %  Clobbers and initializes an xCon.mat file that is created during an SPM99
0005 %  analysis.
0006 %
0007 %  stats_dir is the name of the analysis directory that contains the SPM.mat
0008 %  and xCon.mat files.
0009 %
0010 %  This script is particularly useful when using the SPM99 batch mode in a
0011 %  situation where you change the contrasts you are computing and you want to
0012 %  flush out all of the previous contrasts without having to run the whole
0013 %  analysis over again, i.e. you just want to evaluate the updated set of
0014 %  contrasts.
0015 %
0016 %  Lines that initialize the xCon structure were pulled from the spm_spm.m
0017 %  script.
0018 
0019 % 1/1/04 Petr Janata
0020 
0021 xCon_fname = fullfile(stats_dir,'xCon.mat');
0022 if exist(xCon_fname)
0023   fprintf('Deleting ... %s\n', xCon_fname);
0024       delete(xCon_fname);
0025 end
0026 
0027 load(fullfile(stats_dir,'SPM.mat'),'xX');
0028 
0029 F_iX0 = struct(    'iX0',        [],...
0030     'name',        'all effects');
0031 xCon  = spm_FcUtil('Set',F_iX0(1).name,'F','iX0',F_iX0(1).iX0,xX.xKXs);
0032 for i = 2:length(F_iX0)
0033   xcon = spm_FcUtil('Set',F_iX0(i).name,'F','iX0',F_iX0(i).iX0,xX.xKXs);
0034   xCon = [xCon xcon];
0035 end
0036 
0037 save(xCon_fname,'xCon');

Generated on Sun 25-Aug-2019 04:00:39 by m2html © 2003