TAM: tam_NA_pattern – R documentation

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Documentation

TAM

tam_NA_pattern

Missing Data Patterns

Description

Determines patterns of missing values or pattern of dichotomous item responses.

Usage

tam_NA_pattern(x)

tam_01_pattern(x)

Arguments

`x`	Matrix or data frame

Value

List containing identifiers and indices

Examples

#############################################################################
# EXAMPLE 1: Missing data patterns
#############################################################################

data(data.sim.rasch.missing, package="TAM")
dat <- data.sim.rasch.missing

res <- TAM::tam_NA_pattern(dat)
str(res)

#############################################################################
# EXAMPLE 2: Item response patterns
#############################################################################

data(data.read, package="sirt")
dat <- data.read

res <- TAM::tam_01_pattern(dat)
str(res)

TAM

Test Analysis Modules

v3.6-45

GPL (>= 2)

Authors

Alexander Robitzsch [aut,cre] (<https://orcid.org/0000-0002-8226-3132>), Thomas Kiefer [aut], Margaret Wu [aut]

Initial release

2021-04-22 14:35:52