Re: [R] p values for a GEE model

2006-04-11 Thread Prof Brian Ripley
On Mon, 10 Apr 2006, Tarca, Adi wrote: Hi all, I have a dataset in which the output Y is observed on two groups of patients (treatment factor T with 2 levels). Every subject in each group is observed three times (not time points but just technical replication). I am interested in

Re: [R] p values for a GEE model

2006-04-11 Thread Renaud Lancelot
2006/4/10, Tarca, Adi [EMAIL PROTECTED]: Hi all, I have a dataset in which the output Y is observed on two groups of patients (treatment factor T with 2 levels). Every subject in each group is observed three times (not time points but just technical replication). I am interested in

Re: [R] p values for a GEE model

2006-04-11 Thread Thomas Lumley
On Tue, 11 Apr 2006, Renaud Lancelot wrote: 2006/4/10, Tarca, Adi [EMAIL PROTECTED]: Hi all, I have a dataset in which the output Y is observed on two groups of patients (treatment factor T with 2 levels). Every subject in each group is observed three times (not time points but just

Re: [R] p values for a GEE model

2006-04-11 Thread Prof Brian Ripley
On Tue, 11 Apr 2006, Thomas Lumley wrote: On Tue, 11 Apr 2006, Renaud Lancelot wrote: 2006/4/10, Tarca, Adi [EMAIL PROTECTED]: Hi all, I have a dataset in which the output Y is observed on two groups of patients (treatment factor T with 2 levels). Every subject in each group is observed

Re: [R] p values for a GEE model

2006-04-11 Thread Thomas Lumley
On Tue, 11 Apr 2006, Prof Brian Ripley wrote: On Tue, 11 Apr 2006, Thomas Lumley wrote: He has a linear model with the same number of observations for each person Not so: some have 3 and some have 2, and the two levels of T are not quite balanced (29/28). and no covariates that vary