colMedians: Column and row-wise medians

In Rfast: A Collection of Efficient and Extremely Fast R Functions

Column and row-wise medians

Description

Column and row-wise medians of a matrix.

Usage

colMedians(x,na.rm = FALSE, parallel = FALSE)
rowMedians(x,na.rm = FALSE, parallel = FALSE)

Arguments

x	A matrix or data.frame with the data.
parallel	Do you want to do it in parallel in C++? TRUE or FALSE.
na.rm	TRUE or FAlSE for remove NAs if exists.

Details

The functions is written in C++ in order to be as fast as possible.

Value

A vector with the column medians.

Author(s)

R implementation and documentation: Manos Papadakis <[e-mail]>.

See Also

Median, colVars, colMeans (buit-in R function)

Examples

x <- matrix( rnorm(100 * 100), ncol = 100 )
a <- apply(x, 2, median) 
b1 <- colMedians(x) 
all.equal(as.vector(a), b1)

x<-a<-b1<-NULL

Rfast documentation built on July 9, 2023, 5:56 p.m.