This means that one, or more, of your regressors are already modelling the mean. Please check and if you're in any doubt then post your design so we can double check it.
Dave
On 23 Nov 2010, at 12:02, Gabriel Gonzalez Escamilla wrote:
Dear FSL users
I'm running randomise, and when i add the -D flag warning message appears:
"Warning: You have demeaned your data, but at least one design column has non-zero mean"
Does this message tells me that is something wrong in my design, or it just appears?
Regards
Gabriel
--
Dave Flitney, IT Manager
Oxford Centre for Functional MRI of the Brain
