Kmisc (version 0.5.0)

without: Remove Elements from a Named Object

Description

Removes elements from an R object with the names attribute set in a 'lazy' way. The first argument is the object, while the second is a set of names parsed from .... We return the object, including only the elements with names not matched in ....

Usage

without(x, ...)

Arguments

x

An R object with a names attribute.

...

an optional number of 'names' to match in x.

Details

We can be 'lazy' with how we pass names. The names passed to ... are not evaluated directly; rather, their character representation is taken and used for extraction.

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)