rref {dMod}

Transform matrix A into reduced row echelon form this function is written along the lines of the rref-matlab function.

Description

Transform matrix A into reduced row echelon form this function is written along the lines of the rref-matlab function.

Usage

rref(A, tol = sqrt(.Machine$double.eps), verbose = FALSE, fractions = FALSE)

Arguments

A

matrix for which the reduced row echelon form is searched

tol

tolerance to find pivots

verbose

logical, print verbose information

fractions

logical, not used right now.

Value

a list of two entries is returned; ret[[1]] is the reduced row echelon form of A, ret[[2]] is the index of columns in which a pivot was found

Author(s)

Malenka Mader, [e-mail]