: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gareth Hughes
Sent: Wednesday, June 27, 2007 7:50 AM
To: r-help@stat.math.ethz.ch
Subject: [R] lme correlation structures
Hi all,
I've been using SAS proc mixed to fit linear mixed models and would
like to be able to fit the same models
Hi all,
I've been using SAS proc mixed to fit linear mixed models and would
like to be able to fit the same models in R. Two things in particular:
1) I have longitudinal data and wish to allow for different repeated
measures covariance parameter estimates for different groups (men and
women),
@stat.math.ethz.ch
Subject: [R] lme correlation structures
Hi all,
I've been using SAS proc mixed to fit linear mixed models and would
like to be able to fit the same models in R. Two things in particular:
1) I have longitudinal data and wish to allow for different repeated
measures covariance parameter
Let me modify my question about user-defined covariance structures for LME
models: Can somebody tell me how I can see the code for the definition of the
correlation structures that come with the NLME package. Specifically I like to
see the code for the functions coef, corMatrix, and intialize
Let me modify my question about user-defined covariance structures
for LME models: Can somebody tell me how I can see the code for the
definition of the correlation structures that come with the NLME
package. Specifically I like to see the code for the functions coef,
corMatrix, and intialize
