coxfilter {genefilter} | R Documentation |

## A filter function for univariate Cox regression.

### Description

A function that performs Cox regression with bindings for `surt`

,
`cens`

, and `p`

is returned. This function filters genes
according to the attained p-value from a Cox regression using
`surt`

as the survival times, and `cens`

as the censoring
indicator. It requires `survival`

.

### Usage

coxfilter(surt, cens, p)

### Arguments

`surt` |
Survival times. |

`cens` |
Censoring indicator. |

`p` |
The p-value to use in filtering. |

### Value

Calls to the `coxph`

function in the `survival`

library are used to fit a Cox model. The filter function returns
`TRUE`

if the p-value in the fit is less than `p`

.

### Author(s)

R. Gentleman

### See Also

`Anova`

### Examples

set.seed(-5)
sfun <- coxfilter(rexp(10), ifelse(runif(10) < .7, 1, 0), .05)
ffun <- filterfun(sfun)
dat <- matrix(rnorm(1000), ncol=10)
out <- genefilter(dat, ffun)

[Package

*genefilter* version 1.8.0

Index]