[R] Random Effects Model with Interacting Covariates

2006-07-31 Thread Dov Stekel
difference between before and after), but is there a way to use all the data in an LME? Thanks! Dov ** Dr Dov Stekel Lecturer in Bioinformatics School of Biosciences University of Birmingham Birmingham B15 2TT Tel: +44 121 414 4209

Re: [R] Random Effects Model with Interacting Covariates

2006-07-31 Thread Dov Stekel
. Measurement ~ Treat/When + Patient) which seems unsatisfactory for independence reasons. (I'm not really a statistician - just the most stats-savvy person in my department!) Thanks, Dov On 31 Jul 2006, at 18:38, Douglas Bates wrote: On 7/31/06, Dov Stekel [EMAIL PROTECTED] wrote: Hi I have been

Re: [R] Random Effects Model with Interacting Covariates

2006-07-31 Thread Dov Stekel
, Dov On 31 Jul 2006, at 18:38, Douglas Bates wrote: On 7/31/06, Dov Stekel [EMAIL PROTECTED] wrote: Hi I have been asked by a colleague to perform a statistical analysis which uses random effects - but I am struggling to get this to work with nlme in R. Help would be very much