genefilter: cv – R documentation

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cv

A filter function for the coefficient of variation.

Description

cv returns a function with values for a and b bound. This function takes a single argument. It computes the coefficient of variation for the input vector and returns TRUE if the coefficient of variation is between a and b. Otherwise it returns FALSE

Usage

cv(a=1, b=Inf, na.rm=TRUE)

Arguments

`a`	The lower bound for the cv.
`b`	The upper bound for the cv.
`na.rm`	If set to `TRUE` any `NA`'s will be removed.

Details

The coefficient of variation is the standard deviation divided by the absolute value of the mean.

Value

It returns a function of one argument. The function has an environment with bindings for a and b.

Author(s)

R. Gentleman

Examples

set.seed(-3)
  cvfun <- cv(1,10)
  cvfun(rnorm(10,10))
  cvfun(rnorm(10))

genefilter

genefilter: methods for filtering genes from high-throughput experiments

v1.72.1

Artistic-2.0

Authors

R. Gentleman, V. Carey, W. Huber, F. Hahne

Initial release

cv