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matrixRank

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matrixRank

Syntax

matrixRank(A, [tol])

Details

Calculate the rank of matrix.

Parameters

A is a numeric matrix. One-dimensional matrices can be represented by vectors.

tol is a numeric scalar. Singular values less than tol will be treated as zero, so the rank of the matrix will be the number of singular values greater than tol. The default value is the minimum precision of double precision floating-point numbers, DBL_EPSILON = 2.22044604925e-16.

Returns

A INT scalar indicating the rank of matrix.

Examples

m1 = matrix(1..4,1..4*2,3..6)
matrixRank(m1) 
// output: 2