cc {mice}R Documentation

Extracts complete and incomplete cases

Description

Extracts complete and incomplete cases

Usage

## S4 method for signature 'data.frame'
cc(x, drop = TRUE)
## S4 method for signature 'matrix'
cc(x, drop = TRUE)
## S4 method for signature 'mids'
cc(x, drop = TRUE)
## S4 method for signature 'data.frame'
ic(x, drop = TRUE)
## S4 method for signature 'matrix'
ic(x, drop = TRUE)
## S4 method for signature 'mids'
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.

Details

This is the same as listwise deletion. cc() is equivalent to na.omit(). Missing values in x are coded as NA.

Value

A vector, matrix of data.frame containing the data of the complete cases (cc) or the incomplete cases (ic).

Author(s)

Stef van Buuren, 2010.

See Also

na.omit, cci, ici, codeccn, codelinkicn

Examples


cc(nhanes)   # get the 13 complete cases
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
cc(nhanes[,2,drop=FALSE], drop=FALSE) # extract complete bmi as column

[Package mice version 2.11 Index]