colMins: Column-wise minimum and maximum of a matrix

Description Usage Arguments Value Author(s) See Also Examples

View source: R/min_max.R

Description

Column-wise minimum and maximum of a matrix.

Usage

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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

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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

Example output

Loading required package: Rcpp
Loading required package: RcppZiggurat

Rfast documentation built on May 18, 2021, 1:07 a.m.