getUniqueAnswersFreqs: Create frequency of the answers patterns for given dataset.

In zzawadz/cdmQMatrix:

Description

Create frequency of the answers patterns for given dataset.

Usage

getUniqueAnswersFreqs(scores)

Arguments

scores

data.frame with scores.

Details

This function mith be usefull for calculating q-error using getQError function.

Value

List with three elements:

• "count.scores"data frame with all answers patterns with a frequency column.

• "unique.scores"data frame with patterns without frequencies.

• "freq"a vector with frequencies of given pattern.

Examples

library(ltm)
data("WIRS") 
scores <- getUniqueAnswersFreqs(WIRS)

zzawadz/cdmQMatrix documentation built on May 8, 2019, 6:57 p.m.