Hi - I am attempting to run Qdec on a group of patients vs controls. I have created the mydata.table.dat file with fsid, Group, Age, Gender (and separate files for Group.levels and Gender.levels.

Everything is loading fine but when I press 'analyze' I get an error:

Completed creation of aseg and aparc stats data tables.

ERROR: QdecGlmDesign::Create: zero factors!

Can someone help me find out what I am doing wrong?

Many thanks in advance.

ps I am using the following version: freesurfer-Darwin-lion-stable-pub-v5.3.0

BW

Clare