After using different vegetation indexes we obtained  3 groups of plant (wine grape) vigour (High, Medium, Low). We need to made statistical comparisons for different dependent variables, belonging to each predefined groups, among the groups. For example grape yield among the group H, M and L. The normality test indicated that dependent variables are not normally distributed and the numbers of observations for each variable within a group are not equal among the groups. We need to know the code in SAS to run Dunn test after Kruskall Wallis multiple comparisons.