I am trying to conduct a multi-level sPLS-DA analysis to look at effects of group and time. I was looking on this site to try and go through a tutorial but I don’t think all of it there for multi-level? I am interested in determining the effect of time (2 time points, pre/post) on 2 groups. This is similar to what was done in one of your publications with the HIV data. Picture attached. Is there a site that can guide me through this process?