Re: [R] mixed effects model:how to include initial conditions

2005-01-21 Thread Douglas Bates
Christoph Scherber wrote: Dear R users, I am analyzing a dataset on growth of plants in response to several factors. I am using a mixed-effects model of the following structure: model-lme(growth~block*treatment*factor1*factor2, random=~1|plot/treatment/initialsize) I have measured the initial

RE: [R] mixed effects model:how to include initial conditions

2005-01-21 Thread christian_mora
Christoph, If you take a look at journal articles related to this topic published elsewhere, you will find that the most common analysis is: model-lme(growth~initialsize+block+treatment+) maybe it would be important to check if your model really needs the interactions you pointed out. I