labelled_integer: Transform a vector into consecutive integers

In danielcfurr/edstan: Stan Models for Item Response Theory

Transform a vector into consecutive integers

Description

This takes vector and transforms it into a vector of consecutive integers, which has a lowest value of one, a maximum value equal to the number of unique values, and no gaps.

Usage

labelled_integer(x = vector())

Arguments

x	A vector, which may be numeric, string, or factor.

Value

A vector of integers corresponding to entries in x. The lowest value will be 1, and the greatest value will equal the number of unique elements in x. The elements of the recoded vector are named according to the original values of x. The result is suitable for the ii and jj options for irt_data.

Examples

x <- c("owl", "cat", "pony", "cat")
labelled_integer(x)

y <- as.factor(x)
labelled_integer(y)

z <- rep(c(22, 57, 13), times = 2)
labelled_integer(z)

danielcfurr/edstan documentation built on June 11, 2025, 6:10 p.m.