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||Error || Run 6/6, 6.50608 Excluding 0 Points:??? Error using ==> +Matrix dimensions must agree.Error in =>/space/lyon/1/home/inverse/freesurfer_alpha/fsfast/toolbox/fast_selxavg.m On line 512 ==>SumESSMtx = SumESSMtx + ESSMtx;>> ??? Undefined function or variable 'r'.>> quiting matlab ERROR: fast_selxavg()failed ERROR(/autofs/space/thor_009/users/kk/filter_fMRI/0112_071004): selxavg failed || ||Solution||All runs do not contain the same number of timepoints. This may be due to a scanner error. The affected run should be excluded from averaging || |
Index TableOfContents
Name
["selxavg-sess"] - computes the average signal intensity maps for each condition for each individual subject.
Synopsis
["selxavg-sess"] sf <subjectfilename> df <srchdirfile> analysis <sem_assoc> [options]
Arguments
Required Arguments:
-analysis <analysisname> |
name of functional analysis that you created under the analysis flag in ["mkanalysis-sess.new"] |
-sf <sessidfile> |
text file list of subjects |
-df <srchdirfile> |
text file list of directories where subjects can be found |
-d <srchdir> |
use instead of df if specifying only one dir |
Optional Arguments
-sveres |
save residual error to analysis/eres/eRRR |
-svsignal |
save signal estimate to analysis/signal/sRRR |
-svsnr |
save estimate of SNR to analysis/estsnr |
-umask umask |
set unix file permission mask [not necessary, but can use 002] |
-version |
print version and exit |
Outputs
h |
contains the estimated hemodynamic response at each voxel, along with the standard deviation of the residual error |
h-offset |
contains a map of the mean value at each voxel |
This will create a subdirectory with the same name as your analysisname under the bold directory in subjects directory. There will be two volumes in this directory, one with stem h and one with stem h-offset. These are where the hemodynamic averages are stored, i.e.:
There is also a text file called h.dat with information about the parameters used during the analysis. Future processing of this analysis will create other subdirectories under analysisname.
Description
General Description
["selxavg-sess"] computes the average signal intensity maps for each condition for each individual subject. This program separately analyzes the data in each session indicated in the sessid file, then computes the average signal intensity maps for each condition. This average data can be further processed on an individual basis and/or can be used for group analyses.
Resolving Common Errors
Error |
Run 6/6, 6.50608 Excluding 0 Points:??? Error using ==> +Matrix dimensions must agree.Error in =>/space/lyon/1/home/inverse/freesurfer_alpha/fsfast/toolbox/fast_selxavg.m On line 512 ==>SumESSMtx = SumESSMtx + ESSMtx;>> ??? Undefined function or variable 'r'.>> quiting matlab ERROR: fast_selxavg()failed ERROR(/autofs/space/thor_009/users/kk/filter_fMRI/0112_071004): selxavg failed |
Solution |
All runs do not contain the same number of timepoints. This may be due to a scanner error. The affected run should be excluded from averaging |
Examples
Example 1: For spherical analysis
selxavg-sess -analysis tau_sm6 -sf subjects-id -df dir
Example 2: For talairach analysis
selxavg-sess -analysis tau_sm8 -sf subjects-id -df dir
["mkanalysis"] must me run
Paradigm files placed in each bold directory
Bugs
??
See Also
["mkanalysis-sess.new"]
Links
Methods Description
description description
References
["References/Lastname###"]
Reporting Bugs
Report bugs to <analysis-bugs@nmr.mgh.harvard.edu>