Hi,
I'm not sure exactly why this is going wrong, but by the look of it you are using a very, very old version of FSL. The current version is 5.0.10, whereas you seem to be using something from the 4.1 series, which is years out of date. I would advise trying it on a more recent version of FSL.
All the best,
Mark
> On 15 Aug 2017, at 18:00, Tirso Gonzalez-Alam <[log in to unmask]> wrote:
>
> Hi FSL experts,
>
> I've been trying to do a higher level analysis using as inputs some lower level copes from previous analyses. I'm trying to compare one of these copes generated in a previous analysis with another cope of a similar analysis I've manually inverted using fslswapdim (fslswapdim original_cope1 -x y z inverted_cope1). I've tried running fixed and mixed effects models and reviewing the log I notice I get an error in the Higher-level input files preparation step, specifically in the fslmaths mean_func -Tmean mean_func operation. I'm pasting the error below:
>
> /usr/share/fsl-4.1/bin/fslmaths mean_func -Tmean mean_func
> missing operand at _@_
> in expression " _@_* 54.59966897163122"
> (parsing expression " * 54.59966897163122")
> invoked from within
> "expr $mean_lcon_incr * [ exec sh -c "cat $feat_files($session)/design.lcon" ] "
> (procedure "feat5:proc_gfeatprep" line 270)
> invoked from within
> "feat5:proc_gfeatprep "
> ("for" body line 35)
> invoked from within
> "for { set argindex 1 } { $argindex < $argc } { incr argindex 1 } {
> switch -- [ lindex $argv $argindex ] {
>
> -I {
> incr argindex 1
> set ses..."
> (file "/usr/share/fsl-4.1/bin/feat" line 137)
>
> Any advice you could offer regarding the correct way to run a higher-level analysis on a cope that's been inverted through fslswapdim would be greatly appreciated.
>
> Best regards,
>
> Tirso Gonzalez-Alam
> PhD Student, University of York.
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