mice (version 2.1)

cc: Extracts complete and incomplete cases

Description

Extracts complete and incomplete cases

Usage

## S3 method for class 'data.frame':
cc(x, drop = TRUE)
## S3 method for class 'matrix':
cc(x, drop = TRUE)
## S3 method for class 'mids':
cc(x, drop = TRUE)
## S3 method for class 'data.frame':
ic(x, drop = TRUE)
## S3 method for class 'matrix':
ic(x, drop = TRUE)
## S3 method for class '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 an

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 complete cases (cc) or the incomplete cases (ic).

Details

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

See Also

na.omit, cci, ici, code{ccn}, code{link{icn}}

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