R: Medians of Columns

colMedians {miscTools} | R Documentation

## Medians of Columns

### Description

Compute the sample medians of the columns (non-rows) of a data.frame or array.

### Usage

    colMedians( x, na.rm = FALSE )

### Arguments

`x` | a data.frame or array.
`na.rm` | a logical value indicating whether `NA` values should be stripped before the computation proceeds.

### Value

A vector or array of the medians of each column (non-row) of `x` with dimension `dim( x )[-1]`.

### Author(s)

Arne Henningsen

### See Also

`rowMedians`,`median`,`colMeans`.

### Examples

       data( "Electricity", package = "Ecdat" )
       colMedians( Electricity )

       a4 <- array( 1:120, dim = c(5,4,3,2),
          dimnames = list( c("a","b","c","d","e"), c("A","B","C","D"),
          c("x","y","z"), c("Y","Z") ) )
       colMedians( a4 )
       median( a4[ , "B", "x", "Z" ] )  # equal to
       colMedians( a4 )[ "B", "x", "Z" ]

[Package miscTools version 0.6-22 Index]