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Hello Monica,I've fully tested a data-set of identical size to yours and everything works OK. Can you let me know which version of FSL you are using and what platform you are running on?Kind RegardsMatthewHello Monica,As a test, can you take the "large" merged file ( created from the original 26 images ) and runfslstats -t <name of merged file> -V -R -mthis should provide some summary stats for each 3D volume in the 4D volume. You can then run the same command on each of the inputs and let me know if the fslstats output values match up, e.g. the final line of values in the first fslstats call should match the values for d13.Kind RegardsMatthewWell, I can see all the individual files in fslview with no problem, and read their header and seems fine. I don't know but I tried all the options and it didn't work, so I decided to make smaller volumes where the masks off all subjects would be included. So the original files where 364x436x364 vox (0.5x0.5x0.5 mm) and now new small files are 38x30x31 vox (0.5x0.5x0.5 mm). And it merges perfectly the small masks. Maybe is something related on how fslmerges handles the memory? Because when the files are big it can't concatenate more than 10, when they are small it concatenates the 26. How many subjects did you use? I had 13 starting by c and 13 starting by d. What was the size of your files?Thank you,2014-02-19 12:31 GMT+00:00 Matthew Webster <[log in to unmask]>:
Hi Monica,I've tested fslmerge with identically named files locally, and it works OK. Is it possible one of your input files has been corrupted?Kind RegardsMatthewyes, all the images have the same dimensions and are in standard space. And it always happen with more than 10 files. until 10 files it does it correctly, no matter which files i choose.2014-02-19 0:38 GMT+00:00 Paul Robinson <[log in to unmask]>:Do all the images have the same dimensions? If not, that will cause problems. What kind of error message do you get (if you get one)?
On Feb 18, 2014 4:25 PM, "Monica G Chica" <[log in to unmask]> wrote:nope, still don't work. the weird thing is that in a data where the files are a lot smaller, then it worked. but not in these masks.2014-02-18 22:12 GMT+00:00 Eduardo Garza <[log in to unmask]>:
Don't know if this will work, but have you tried renaming all of them using only numbers, such as 001.nii.gz, 002.nii.gz, etc.?
Eduardo A. Garza Villarreal, M.D., Ph.D.Associate Professor, Department of Neurology, Faculty of MedicineAssociate Researcher, Center of Functionally Integrative Neuroscience,University of Aarhus, Denmark.