wilcox.test(y,x) # where y and x are numeric # dependent 2-group Wilcoxon Signed Rank Test wilcox.test(y1,y2,paired=TRUE) # where y1 and y2 are numeric # Kruskal Wallis Test One Way Anova by Ranks kruskal.test(y~A) # where y1 is numeric and A is a factor # Randomized Block Design - Friedman Test friedman.test(y~A|B)