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Narendran
Calcite | Level 5

I am performing a three-way ANOVA and I got a significant three-way interaction between the factors. In the process of further analysis, I need to write a contrast statement to compare the differences between levels of a variable (di - 6 levels) at different levels of another variable (dr - 3 levels). But I am not sure how to write the contrast coefficients for this condition. I have attached my data and SAS code. Please give me some input. 

2 REPLIES 2
PaigeMiller
Diamond | Level 26

Comparing levels to one another is not the place where CONTRAST statements are needed.

 

Use the LSMEANS statement to compare the levels.

--
Paige Miller
Narendran
Calcite | Level 5

Thank you for your reply. 

 

If I want to test some customized hypothesis regarding some specific levels of a factor, wouldn't I need to use contrast statement?

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