Re: [R] random effects with lmer() and lme(), three random factors

2006-08-03 Thread Spencer Graves
In theory, 'lme' may be able to handle crossed random effects, but I don't know how to do it. I've used 'lmer' for such models, and your 'lmer' code looks plausible to me. Therefore, I would be inclined to believe the 'lmer' results. To remove any lingering doubt, I

Re: [R] random effects with lmer() and lme(), three random factors

2006-07-31 Thread Xianqun \(Wilson\) Wang
] On Behalf Of Douglas Bates Sent: Saturday, July 29, 2006 7:51 AM To: Xianqun (Wilson) Wang Cc: r-help@stat.math.ethz.ch Subject: Re: [R] random effects with lmer() and lme(), three random factors On 7/28/06, Xianqun (Wilson) Wang [EMAIL PROTECTED] wrote: Hi, all, I have a question about random

Re: [R] random effects with lmer() and lme(), three random factors

2006-07-29 Thread Douglas Bates
On 7/28/06, Xianqun (Wilson) Wang [EMAIL PROTECTED] wrote: Hi, all, I have a question about random effects model. I am dealing with a three-factor experiment dataset. The response variable y is modeled against three factors: Samples, Operators, and Runs. The experimental design is as follow:

[R] random effects with lmer() and lme(), three random factors

2006-07-28 Thread Xianqun \(Wilson\) Wang
Hi, all, I have a question about random effects model. I am dealing with a three-factor experiment dataset. The response variable y is modeled against three factors: Samples, Operators, and Runs. The experimental design is as follow: 4 samples were randomly chosen from a large pool of test

[R] random effects with lmer() and lme(), three random factors

2006-07-28 Thread Xianqun \(Wilson\) Wang
Hi, all, I have a question about random effects model. I am dealing with a three-factor experiment dataset. The response variable y is modeled against three factors: Samples, Operators, and Runs. The experimental design is as follow: 4 samples were randomly chosen from a large pool of