[R] Permutations with samr

2007-04-25 Thread Isabelle Rivals
of permutations smaller than (N1+N2)/(N1!*N2!), the result will generally be different. I would be very grateful if someone could provide me an explanation for the samr choice of the permutations. Thanks for your help, Isabelle Dr. Isabelle Rivals - Maître de

[R] Question about SAMR

2007-04-24 Thread Isabelle Rivals
of permutations smaller than (N1+N2)/(N1!*N2!), the result will generally be different. I would be very grateful if someone could provide me an explanation for the samr choice of the permutations. Thanks for your help, Isabelle Dr. Isabelle Rivals - Maître de

[R] tests performed by anova

2006-07-28 Thread Isabelle Rivals
Dear R-helpers, In the case of two categorical factors, say a and b, once I have fixed the constrasts, the model matrix is set according to these contrasts with lm, and the t-tests for the significance of the parameters provided by summary indeed concern the comparison of the model with each