R: Row-wise minimum and maximum of a matrix.

Row-wise minimum and maximum {Rfast} | R Documentation

## Row-wise minimum and maximum of a matrix.

### Description

Row-wise minimum and maximum of a matrix.

### Usage

    rowMins(x, value = FALSE)
    rowMaxs(x, value = FALSE)
    rowMinsMaxs(x)

### Arguments

`x` | A numerical matrix with data.
`value` | If the value is FALSE it returns the indices of the minimum/maximum, otherwise it returns the minimum and maximum values.

### Value

A vector with the relevant values.

### Author(s)

Manos Papadakis

R implementation and documentation: Manos Papadakis <papadakm95@gmail.com>.

### See Also

`colMins, colMaxs, nth, rowrange colMedians, colVars, colSort, rowSort`

### Examples

    x <- matrix( rnorm(500 * 500), ncol = 500 )

    system.time( s1 <- rowMins(x) )
    system.time( s2 <- apply(x, 1, min) )

    system.time( s1 <- rowMaxs(x) )
    system.time( s2 <- apply(x, 1, max) )

    system.time( s1 <- c(apply(x, 1, min),apply(x, 1, max) ))
    system.time( s2 <- rowMinsMaxs(x) )

    x<-s1<-s2<-NULL

[Package Rfast version 2.0.4 Index]