Hi
I have a linear model and I want to tests whether the model terms are
significant
I used anova but F and P value depend on the order of the terms in the
model.
I have repeated the same analysis in another stat software and F and P value
did not differ with order of terms in the model.
Can
I suggest you consult a local statistician or read up on linear
models,perhaps by reading the relevant section of VR's MASS. Also search
the R-Help archives for Type III SS. Further comments below.
-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
The business of the
Dear Martin,
The anova() function computes sequential (sometimes called type-I) tests;
I'm not sure what Jmp does by default, but either type-II or type-III
tests would produce these results for a model of this structure. See the
Anova() function in the car package for type-II and III tests.
I
