recode: recodes item responses

In lordif: Logistic Ordinal Regression Differential Item Functioning using IRT

Description

Recodes item responses as specified by original and modified

Usage

  recode(vec, original, modified)

Arguments

vec	a vector of item responses to be recoded
original	original item response categories, e.g., c(0,1,2,3)
modified	modified item response categories, e.g., c(1,2,3,4)

Details

vec, original, and modified must be of the same mode. original and modified must be of the same length.

Value

Returns a vector of the same length and mode as vec with recoded values.

Author(s)

Seung W. Choi <[e-mail]>

Examples

x <- c(0,1,2,3,4,0,1,2,3,4)
y <- c(0,1,2,3,4)
z <- c(1,2,3,4,5)
recode(x,y,z)
##returns c(1,2,3,4,5,1,2,3,4,5)

lordif documentation built on May 2, 2019, 2:13 p.m.