[R] GLMM and data manipulation (2nd try)

2008-05-02 Thread Giovanni Petris
Hello, I posted a question yesterday but I got no replies, so I'll try to reformulate it in a more concise way. I have the following data, summarizing approval ratings on two different surveys for a random sample of 1600 individuals: > ## Example: Ratings of prime minister (Agresti, Table 12.1

Re: [R] GLMM and data manipulation (2nd try)

2008-05-02 Thread Andrew Robinson
On Fri, May 02, 2008 at 03:06:31PM -0500, Giovanni Petris wrote: > > Hello, > > I posted a question yesterday but I got no replies, so I'll try to > reformulate it in a more concise way. > > I have the following data, summarizing approval ratings on two > different surveys for a random sample o

Re: [R] GLMM and data manipulation (2nd try)

2008-05-02 Thread Andrew Robinson
On Sat, May 03, 2008 at 06:43:22AM +1000, Andrew Robinson wrote: > On Fri, May 02, 2008 at 03:06:31PM -0500, Giovanni Petris wrote: > > > > Hello, > > > > I posted a question yesterday but I got no replies, so I'll try to > > reformulate it in a more concise way. > > > > I have the following da

Re: [R] GLMM and data manipulation (2nd try)

2008-05-02 Thread Giovanni Petris
Andrew, Thank you for your reply. In fact, I had a way of unrolling the table but I think yours look much nicer - much readable to me. Below is what I did, but I was afraid I would scare my students away from R! > approval <- factor(c("Approve", "Disapprove"), +levels = c("Di