| Detailed description |
MWE (using the attached data set):
library(eRm)
d0 = read.csv("dat.csv",header=TRUE, sep=",") # data set attached
res0 = PCM(d0[,-1]-1)
person.parameter(res0)
Fehler in tapply(1L:ncol(X01beta), mt_ind, function(xin) { :
Argumente müssen die selbe Länge haben
(Error in tapply(...): Arguments must have same length)
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