[R] eRm/raschsampler error message

Hi, I am running the non-parametric rasch model tests using eRm. I have a reasonably large dataset for this type of exercise (110 items, 248 persons). I run: > allb2=as.matrix(allb) > rsample <- rsampler(allb2, ctr) > t102<-NPtest(rsample, method="T10") #global test, subgroup inv and receive erro

Re: [R] instal tar.gz package on windows

Good evening sir/madam My name is katleho makatjane. I am currently a B.com statistics student at North West University Mafikeng campus. I have installed R 3.1.0 on my laptop but my main problem is to install all necessary packages so that I may be able to start using it for my analysis. It giv