Dear Recipient,

I am a Master student new comer in FS. I am trying toi use the QDEC ti analyse some longitudinal data. Most probably my issue is related with the file format. I tried to use several text editors (mac text editor, gedit and text wrangler) however I end up in 2 different errors without be able to overcome the issue.

The 1st error was:

ERROR: qdec table missing correct column headers?

Make sure first column is labeled 'fsid' for the time point and

second column is 'fsid-base' to specify the subject tempate (base), e.g.:

fsid fsid-base age

me1 me 22.3

me2 me 23.2

you1 you 21.6

you2 you 22.5

Simones-iMac:subjects SLMAC14$ long_mris_slopes --qdec /Applications/freesurfer/subjects/qdec/lala copy.dat.doc --meas thickness --hemi lh --do-avg --do-rate --do-pc1 --do-spc --do-stack --do-label --time years --qcache fsaverage --sd /Applications/freesurfer/subjects/

and the 2nd one was:

Parsing the qdec table: /Applications/freesurfer/subjects/qdec/qdec.table.dat

ERROR: qdec table /Applications/freesurfer/subjects/qdec/qdec.table.dat not found or empty?

Even if I found a similar error im the forum, I didn't understand finally how this guy overcome it. I also attached you the 2 files that I used. Please answer me as soon as you are available. Thank you

All the Best,

Dimitris