Extracting Item Response Dataset
Extracts the used data set for models
fitted in TAM. See CDM::IRT.data
for more details.
## S3 method for class 'tam.mml' IRT.data(object, ...) ## S3 method for class 'tam.mml.3pl' IRT.data(object, ...) ## S3 method for class 'tamaan' IRT.data(object, ...)
object |
Object of class |
... |
Further arguments to be passed |
A dataset with item responses
## Not run: ############################################################################# # EXAMPLE 1: Dichotomous data data.sim.rasch ############################################################################# data(data.sim.rasch) dat <- data.sim.rasch # estimate model mod1 <- TAM::tam.mml(dat) # extract dataset (and weights and group if available) dmod1 <- IRT.data(mod1) str(dmod1) ## End(Not run)
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