Dear Freesurfers,
I am studying how the practice of meditation affects
cortical thickness. I have two types of meditations, and
I also know for how many years each mediator has meditated.
Therefore, ideally I would like my categorical factor to be
meditation (control, meditation1 and meditation2), and
continuous factor to be the number of years of meditation.
This design, of course, has a problematic column of zeros,
which corresponds to the slope of the control (a non-meditator
has meditated for 0 years).
Does freesurfer has a way out of this
problem? For example, I have came across pseudoinverse methods
in literature?
Any suggestion is highly appreciated.
Thank you very much!
Sincerely,
Ye