R: Test for square matrix

is.square.matrix {matrixcalc} | R Documentation

## Test for square matrix

### Description

The function returns TRUE if the argument is a square matrix and FALSE otherwise.

### Usage

    is.square.matrix(x)

### Arguments

`x` | a matrix

### Value

TRUE or FALSE

### Author(s)

Frederick Novomestky fnovomes@poly.edu

### References

Bellman, R. (1987). Matrix Analysis, Second edition, Classics in Applied Mathematics, Society for Industrial and Applied Mathematics.

### Examples

    A <- matrix( seq( 1, 12, 1 ), nrow=3, byrow=TRUE )
    is.square.matrix( A )
    B <- matrix( seq( 1, 16, 1 ), nrow=4, byrow=TRUE )
    is.square.matrix( B )

[Package matrixcalc version 1.0-3 Index]