Displaying 2 results from an estimated 2 matches for "nonstatisticians".
2007 Jun 14
0
random effects in logistic regression (lmer)-- identification question
...s:
Groups Name Variance Std.Dev.
PLACE (Intercept) 0.047326 0.21754
Suppose I estimate models for the 2 races in a combined model like this:
fm1 <- lmer( y ~ -1 + Race / (x) + (-1 + Race | PLACE), data=dat,
family=binomial)
This gives fixed effects estimates that are pretty easy for
nonstatisticians to understand. One can look and see the effect of a
variable x on people of different races.
But the random effect is a bit hard to understand. Since the Race
variable is dichotomous, My aim was to see if the variance of the
random effect is different for the 2 racial categories. Here are the
es...
2000 May 02
16
R Documentation(s)
Dear all,
I am interested by the various messages sent to the r-help mailing list
these last few days about documentation on R. Yet, there are a lot of
issues actually open on this topic, and it is not clear to me what is the
"urgent need for documentation" on R.
R comes with the 'Introduction to R' by Venables et al. I recommend the
colleagues and students in my lab who are