Re: [R] help with multivariate analysis

2005-12-16 Thread Spencer Graves
Dear Dr. Vidali: 1. I would first plot the data a number of different ways. Maybe you've already done plenty of this, but I have had a tendancy to rush to the model I thought was the "best" without adequate data integrity checks. I typically want to start with normal probability (u

[R] help with multivariate analysis

2005-12-13 Thread Matteo Vidali
dear R users, I need some help for multivariate analysis. I have 2 anaesthetic treatment groups (20 patients/group) where I register heart frequency and pressure for 60 min (repeated measures every 5 minutes). I would like to perform a test to check if treatments are different in controlling fr