Andreas Wittmann wrote:
Dear R-users,
i try to fit a multinomial model in order to get an imputation for a
missing value in factor1.
library(nnet)
factor1 <- factor(c("a","b","c","d"))
factor2 <- factor(c("e","f","g","h"))
size <- c(3,8,2,1)
factor1[3] <- NA
Z<-ifelse(is.na(factor1), 0, 1)
assign("data", cbind.data.frame(factor1,factor2,size),pos=1)
multinom(formula(data),data=data[Z,])
when entering the last line i get a runtime error and R crashes down.
my system is windows xp and R 2.9.1, i tried it also with ubuntu 9.04
and R.2.8.1 but i get a quite similar error.
Many thanks if anyone could tell me what i do wrong and what is the
problem here.
Please report bugs in packages to the package maintainer (who in this
case probably has read your message already, CCing anyway).
Best wishes,
Uwe Ligges
best regards
Andreas
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and provide commented, minimal, self-contained, reproducible code.
