medianFilter {xcms} | R Documentation

## Apply a median filter to a matrix

### Description

For each element in a matix, replace it with the median of the values around it.

### Usage

    medianFilter(x, mrad, nrad)

### Arguments

`x` | numeric matrix to median filter
`mrad` | number of rows on either side of the value to use for median calculation
`nrad` | number of rows on either side of the value to use for median calculation

### Value

A matrix whose values have been median filtered

### Author(s)

Colin A. Smith, csmith@scripps.edu

### Examples

    mat <- matrix(1:25, nrow=5)
    mat
    medianFilter(mat, 1, 1)

[Package xcms version 3.9.1 Index]