Displaying 3 results from an estimated 3 matches for "coefnames".
2008 Oct 29
1
how can I access parts of yags output
...n from
?yags
library(methods)
data(stackloss)
Y1 <- yags(stack.loss~Air.Flow,id=1:21, data=stackloss)
How can I access parts of the output.
I tried:
> str(Y1)
Formal class 'yagsResult' [package "yags"] with 25 slots
..@ coefficients : num [1:2] -44.13 1.02
..@ coefnames : chr(0)
> Y1$coefnames
Error in Y1$coefnames : $ operator not defined for this S4 class
Thanks,
Juliet
2009 Jul 17
1
package to do inverse probability weighting in longitudinal data
Hi there,
I have a dataset from a longitudinal study with a lot of drop-out. I
want to implement the inverse probability weighting method by Robins
1995 JASA paper "Analysis of semiparametric regression models for
repeated outcomes in the presence of missing data". Does anyone know
if there is a package to do it in R (or other software)? Thanks a lot!
Lei
2007 Jun 21
2
Multinomial models
Hello,
I am VERY new to R (one week) and I am trying to run a multinomial logit model.
The model I am using is
> model1 <- multinom(Y ~ X1 + X2 + , ..., Xn)
if I put in
> summary(model1)
I get
#Error in function (classes, fdef, mtable) :
unable to find an inherited method for function "fitted", for
signature "multinom"
and if I put in
> coef(model1)