ic {mice}R Documentation

Incomplete cases

Description

Extracts incomplete cases from a data set. Missing values in x are coded as NA. The companion function for selecting the complete cases is cc().

Usage

ic(x, drop = TRUE)

Arguments

x

An R object. Currently supported are methods for the following classes: mids, mira, mipo, data.frame and matrix. In addition, x can be a vector of any kind.

drop

A logical flag for matrices and arrays. If drop=TRUE the result is coerced to the lowest possible dimension.

Value

A vector, matrix of data.frame containing the data of the incomplete cases.

Author(s)

Stef van Buuren, 2010.

See Also

na.omit, cc, cci, ici, ccn, icn

Examples

ic(nhanes)   # get the 12 rows with incomplete cases
ic(nhanes[1:10,])  # incomplete cases within the first ten rows
ic(nhanes[,2:3])  # restrict extraction to variables bmi and hyp
[Package mice version 2.22 Index]