R: MATLAB rot90 function

rot90 {matlab} | R Documentation

## MATLAB rot90 function

### Description

Rotates matrix counterclockwise `k*90` degrees.

### Usage

    rot90(A, k=1)

### Arguments

`A` | matrix to be rotated
`k` | numeric scalar specifying the number of times to rotate (1..4)

### Details

Rotating 4 times (360 degrees) returns the original matrix unchanged.

### Value

Returns matrix corresponding to argument `A` having been rotated argument `k` number of times.

### Author(s)

P. Roebuck proebuck@mdanderson.org

### See Also

`fliplr`, `flipud`

### Examples

    rot90(matrix(1:4, 2, 2))

[Package matlab version 1.0.2 Index]