Sorry,

These are matrices of correlation between timeseries....so fMRI data.

Cheers,

Rosalia.

2013/9/24 Rosalia Dacosta Aguayo <[log in to unmask]>

Dear FSL experts,

I have single correlation matrices, one per subject, and I would like to concatenate them into a single 4D volume for using in randomise.

I have been looking at the wiki: http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/Fslutils; and I have found that the most appropiate tool for this purpose is fslmerge...but I am unsure about if I have to concatenate my files in time, X, Y or Z to get the final 4D file.

Taking into account that what I want to concatenate are matrices of correlation....which of the following optiion should I use?:

Usage: fslmerge <-x/y/z/t/a/tr> <output> <file1 file2 .......> [tr value in seconds]
     -t : concatenate images in time
     -x : concatenate images in the x direction
     -y : concatenate images in the y direction
     -z : concatenate images in the z direction
     -a : auto-choose: single slices -> volume, volumes -> 4D (time series)
     -tr : concatenate images in time and set the output image tr to the final option value

Thanks in advance,

Rosalia.