modify: Modify a data set

In dcmodify: Modify Data Using Externally Defined Modification Rules

Modify a data set

Description

Modify a data set

Usage

modify(dat, x, ref, ...)

## S4 method for signature 'data.frame,modifier,environment'
modify(dat, x, ref, logger = NULL, ...)

## S4 method for signature 'data.frame,modifier,ANY'
modify(dat, x, logger = NULL, ...)

## S4 method for signature 'data.frame,modifier,data.frame'
modify(dat, x, ref, logger = NULL, ...)

## S4 method for signature 'data.frame,modifier,list'
modify(dat, x, ref, logger = NULL, ...)

Arguments

dat	A data.frame
x	A modifier object containing modifying rules.
ref	A environment
...	Extra arguments.
logger	Optional. A lumberjack-compatible logger object.

Examples

m <- modifier( if (height < mean(height)) height <- 2*height
, if ( weight > mean(weight) ) weight <- weight/2  )
modify(women,m)

dcmodify documentation built on May 29, 2024, 4:50 a.m.