num.to.cat: Transform continuous variables into ordered factors
In eatModel: Educational Assessment Tools for IRT Modeling using Conquest or TAM

Description Usage Arguments Value Author(s) Examples

Function is useful if parameters on the ‘PISA’ metric should be transformed into competence levels.

1	num.to.cat(x, cut.points, cat.values = NULL)

`x`	Numeric vector.
`cut.points`	Numeric vector with cut scores.
`cat.values`	Optional: vector with labels for the cut scores. Note: if specified, length of cat.values should be length(cut.points)+1.

Vector with factor values.

Sebastian Weirich

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values <- rnorm(10,0,1.5) * 100 + 500
num.to.cat(x = values, cut.points = 390+0:3*75)
num.to.cat(x = values, cut.points = 390+0:3*75, cat.values = c("1a", "1b", 2:4))