filterfun {genefilter}R Documentation

Creates a first FALSE exiting function from the list of filter functions it is given.

Description

This function creates a function that takes a single argument. The filtering functions are bound in the environment of the returned function and are applied sequentially to the argument of the returned function. When the first filter function evaluates to FALSE the function returns FALSE otherwise it returns TRUE.

Usage

filterfun(...)

Arguments

... Filtering functions.

Value

filterfun returns a function that takes a single argument. It binds the filter functions given to it in the environment of the returned function. These functions are applied sequentially (in the order they were given to filterfun). The function returns FALSE (and exits) when the first filter function returns FALSE otherwise it returns TRUE.

Author(s)

R. Gentleman

See Also

genefilter

Examples

 set.seed(333)
 x <- matrix(rnorm(100,2,1),nc=10)
 cvfun <- cv(.5,2.5)
 ffun <- filterfun(cvfun)
 which <- genefilter(x, ffun)

[Package genefilter version 1.8.0 Index]