Dear Freesurfer team,

I am trying to perform qdec longitudinal analysis.

I have ran produced the template and long files, as well as the longitudinal table.

I am currently trying to perform the long_mis_slopes command however I keep getting:

ERROR: qdec table /qdec/long.qdec.respsex.table.dat not found or empty?

I am using

Freesurfer version: freesurfer-Darwin-lion-stable-pub-v5.3.0

Platform: OS X El Capitan

The table does exist, however, I keep getting the same error. The table has the columns that are specified as being necessary (fsid, fsid-base, and an age column - "days" in my case). Currently it also has a response and sex column. I have changed the age column to "years", changed the location in/out of my subjects folder into a 'qdec' folder within /subjects. I removed the fsid column and received an error output of

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

suggesting that it can see the .dat table. Additionally, from the terminal I can open the table in microsoft excel, pico etc.

However, it fails when it tries to parse the table.

I have attached a log of the varying attempts I have made to use the long_mris_slopes command.

I have also attached what is essentially the .dat table I have been trying to use for your viewing as well.

I've searched the list and can't seem to find discussion of this error with regards to the long_mis_slopes command.

Am I missing something?

Does anyone have any thoughts on how to trouble shoot this?

Thank you.

Quinn