make_polyIRT_data {airt}

R Documentation

Converts continuous performance data to polytomous data with 5 categories.

Description

This function converts continous performance data to polytomous data with 5 categories

Usage

make_polyIRT_data(df, method = 1)

Arguments

df	The input data in a dataframe or a matrix
method	If 1, then the data is an accuracy measure between 0 and 1. If 2, then the performance data is possibly has a bigger range. So we divide it into 5 equal bins to make it polytomous.

Value

The polytomous data frame.

Examples

set.seed(1)
x1 <- runif(500)
x2 <- runif(500)
x3 <- runif(500)
x <- cbind(x1, x2, x3)
xout <- make_polyIRT_data(x)

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