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SingularValueDecomposition:: (8 methods):
__construct()
getU()
getV()
getSingularValues()
getS()
norm2()
cond()
rank()
Class: SingularValueDecomposition - X-Ref
For an m-by-n matrix A with m >= n, the singular value decomposition is__construct($Arg) X-Ref |
Construct the singular value decomposition. Derived from LINPACK code. param: mixed $Arg Rectangular matrix |
getU() X-Ref |
Return the left singular vectors. return: Matrix U |
getV() X-Ref |
Return the right singular vectors. return: Matrix V |
getSingularValues() X-Ref |
Return the one-dimensional array of singular values. return: array diagonal of S |
getS() X-Ref |
Return the diagonal matrix of singular values. return: Matrix S |
norm2() X-Ref |
Two norm. return: float max(S) |
cond() X-Ref |
Two norm condition number. return: float max(S)/min(S) |
rank() X-Ref |
Effective numerical matrix rank. return: int Number of nonnegligible singular values |