dcmodify (version 0.9.0)

modify: Modify a data set

Description

Modify a data set

Usage

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