Re: [R] Help Non-sequential ANOVAs

2011-07-28 Thread John Fox
Dear Ariane, You must be referring to the Anova() function in the car package. The function doesn't have an appropriate method for gls objects. The error was produced by the default method, which is inappropriate for gls objects, as you discovered. I agree that it would be nice for Anova() to h

[R] Help Non-sequential ANOVAs

2011-07-28 Thread Ariane Charaoui
Hello, I have data on the maturity of two morphs of fish. I want to test whether their maturity is evolving differently or not on a temporal scale (month). The maturity variable (independent variable) is continuous and the morph and month variables (dependant variables) are categorical. Becaus