I'm trying to kick off some of the rust and learn some of the R packages
for Rasch modeling.  When I tried using the eRm package, I get item
difficulty estimates for all my items accept the first (in terms of order)
item.

#Begin code

library(eRm)

r.simulation <- sim.rasch(20,100)


r.data <- r.simulation$items

#eRm results

erm.rasch <- RM(r.data)
names(erm.rasch)

erm.items <- erm.rasch$etapar

erm.items


#end code


All items accept V1 (the first item in the list) show up.


James

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