parameter.matrix: Parameter matrix form
In SICSresearch/IRTpp: Estimating IRT Parameters using the IRT Methodology

Description Usage Arguments Value See Also Examples

Returns a parameter matrix from a parameter list.

1	parameter.matrix(pars, model = "3PL", dims = 1, byrow = F)

`pars`	The parameter list
`model`	The model whose the list refers to.
`dims`	dimensions of the model
`byrow`	to interpret the data by row or not.

A matrix containing the model parameters.

parameter.list

## create the dataset
# data <- simulateTest(model = "3PL", items = 20, individuals = 200)
## extract the parameters and transform them from one list to matrix.
# zita <-data$itempars
# parameter matrix
# zita.m <- parameter.matrix(zita)
# parameter list
# zita.l <- parameter.list(zita)