columns {tis}

Rows and Columns of a Matrix

Description

Create lists from the rows and/or columns of a matrix.

Usage

columns(z)
rows(z)

Arguments

z

a matrix

Value

rows returns a list of the rows of z. If z has row names, those will also be the names of the returned list.

columns does the same, but for columns. Note that if z is some kind of time series, so too will be the elements of the returned list.