Dear all:
I have 10 response matrices with missing data.
I used difMH to detect DIF items.
syntax as:
n<-10
difMH<-list()
for (i in 1:10){
difMH[[i]]<-difMH(respM[[i]], group="group", focal.name=1 ,
MHstat="MHChisq",
correct=TRUE, exact=FALSE, alpha=0.05, purify=FALSE,
nrIter=10, save.output=TRUE)
but the output only contains the last detection result.
maybe I should output the list "difMH"?
I tried:> lapply(difMH, write, "difMH.txt", append=TRUE)
but, R reveals:
Error in cat(list(...), file, sep, fill, labels, append) :
argument 1 (type 'list') cannot be handled by 'cat'
please help me.
thanks!