Kmisc (version 0.1.0)

without: Remove Variables from a List / Data Frame

Description

Removes variables from a list / data.frame in a 'lazy' way. The first argument is the data frame, while the second is passed and parsed from .... We return the list / data.frame, sans the names matched from ....

Usage

without(dat, ...)

Arguments

dat

list or data.frame object, or other similar object with a names attribute

...

an optional number of 'names' to match in dat

Details

#' We can be 'lazy' with how we name the variables. The names passed to ... are not evaluated directly; rather, their character representation is taken and used for extraction. Furthermore, for a given item submitted, all text before a $ is removed.

See Also

extract

Examples

dat <- data.frame( x = c(1, 2, 3), y = c("a", "b", "c"), z=c(4, 5, 6) )
## all of these return identical output
dat[ !( names(dat) %in% c("x","z") ) ]
without( dat, x, z)
without( dat, dat$x, dat$z )