Back in Stackoverflow, I had asked this question but was redirected here for clarifications related to statistics. As mentioned in the question, I have about 200 brain anatomical measurements from two groups of individuals and would like to extract the most distinguishing features. Can someone please suggest me which statistical tests are best to try.
Some papers mentioned the KS test. In the KS 2 sample test, I am confused if the 2 samples are a brain anatomical measurement (such as thickness of cortex) of two patients one from each group? Or one patient from group 1 vs another patient from group 2 (taking all the different anatomical measurements at once)?