R: Column-wise minimum and maximum of a matrix

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

## Column-wise minimum and maximum of a matrix

### Description

Column-wise minimum and maximum of a matrix.

### Usage

    colMins(x, value = FALSE, parallel = FALSE)

    colMaxs(x, value = FALSE, parallel = FALSE)

    colMinsMaxs(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.
`parallel` | Do you want to do it in parallel in C++? TRUE or FALSE. The parallel will return the minimum/maximum value only. It will never return the indices.

### Value

A vector with the relevant values.

### Author(s)

Manos Papadakis

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

### See Also

`rowMins, rowMaxs, nth, colrange, colMedians, colVars, colSort, rowSort`

### Examples

    x <- matrix( rnorm(100 * 200), ncol = 200 )

    s1 <- colMins(x)
    s2 <- apply(x, 2, min)

    s1 <- colMaxs(x)
    s2 <- apply(x, 2, max)

    s1 <- colMinsMaxs(x)
    s2 <- c(apply(x, 2, min), apply(x, 2, max))

    x<-s1<-s2<-NULL

[Package Rfast version 2.0.4 Index]