vec {matrixcalc}R Documentation

Vectorize a matrix

Description

This function returns a column vector that is a stack of the columns of x, an m by n matrix.

Usage

vec(x)

Arguments

x

a matrix

Value

A matrix with m * n rows and one column.

Author(s)

Frederick Novomestky fnovomes@poly.edu

References

Magnus, J. R. and H. Neudecker (1999) Matrix Differential Calculus with Applications in Statistics and Econometrics, Second Edition, John Wiley.

See Also

is.numeric.matrix

Examples

x <- matrix( seq( 1, 16, 1 ), nrow=4, byrow=TRUE )
vecx <- vec( x )

[Package matrixcalc version 1.0-1 Index]