klausur.data(answ, corr, items = NULL, marks = NULL,
wght = NULL, corr.key = NULL, rename = c(),
dummies = c(), disc.misc = FALSE, na.rm = TRUE,
item.prefix = c(), sort.by = "Name", maxp = NULL)data.frame which has to
include at least these variables: No, Name,
FirstName, MatrNo, as well as
Pseudonym (optional) and variabl