R: Column and row-wise ranks

Column and row-wise ranks {Rfast} | R Documentation

## Column and row-wise ranks

### Description

Column and row-wise ranks.

### Usage

    colRanks(x,method = "average",descending = FALSE,stable = FALSE, parallel = FALSE)
    rowRanks(x,method = "average",descending = FALSE,stable = FALSE, parallel = FALSE)

### Arguments

`x` | A mumerical matrix with the data.
`parallel` | A boolean value for parallel version.
`method` | a character string for choosing method. Must be one of "average", "min", "max", "first".
`descending` | A boolean value (TRUE/FALSE) for sorting the vector in descending order. By default sorts the vector in ascending.
`stable` | A boolean value (TRUE/FALSE) for choosing a stable sort algorithm. Stable means that discriminates on the same elements. Only for the method "first".

### Details

For each column or row of a matrix the ranks are calculated and they are returned. The initial matrix is gone.

### Value

A matrix with the column or row-wise ranks.

### Author(s)

Manos Papadakis

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

### See Also

`Rank, correls`

### Examples

    x <- matrnorm(100, 10)
    a1 <- colRanks(x)
    a2 <- apply(x, 2, rank)
    b1 <- rowRanks(x)
    b2 <- apply(x, 1, rank)

    x<-a1<-a2<-b1<-b2<-NULL

[Package Rfast version 2.0.4 Index]