Two-way repeat measures ANOVA - data are not normally distributed
I read the previous posts on the two-way repeat measures ANOVA - Multivariate or univariate analysis, and the full factorial mixed model add-in. Now I have two questions: 1) When the data are not normally distributed, would these methods be still valid for the analysis? Any non-parametric analysis on JMP? I noticed that R programming may have certain packages to provide solutions, but I am not a...