rref: Reduced Row Echelon Form of a matrix

In quhomology: Calculation of Homology of Quandles, Racks, Biquandles and Biracks

Description

Function calculates the Reduced Row Echelon Form of a matrix.

Usage

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

Arguments

A	Matrix to be turned into Gaussian Form.
tol	Tolerance for checking for 0 pivot.
verbose	If TRUE, print intermediate steps.
fractions	If true, try to express nonintegers as rational numbers.

Value

A matrix

Author(s)

John Fox

References

http://socserv.mcmaster.ca/jfox/Courses/R-course-Berkeley/

See Also

GaussianElimination

Examples

test_mat <- matrix(c(2,4,4, -6,6,12, 10,-4,-16), nrow=3, ncol=3, byrow=TRUE)
rref(test_mat)

Example output

     [,1] [,2] [,3]
[1,]    1    0    0
[2,]    0    1    0
[3,]    0    0    1

quhomology documentation built on May 1, 2019, 8:44 p.m.