FLMatrixNorm: Norm of a Matrix.

In Fuzzy-Logix/AdapteR: Converts R syntax to SQL to provide fast analytics using in-database C++ library DB Lytix.

Description

FLMatrixNorm gives the value of Norm for FLMatrix objects.

Usage

FLMatrixNorm(object, NormMethod)

Arguments

object	is of class FLMatrix
NormMethod	is an integer from 1-4 representing the type of norm that should be computed.

Value

FLMatrixNorm returns a R vector object which is the Norm of input FLMatrix object calculated using method specified by NormMethod input. There are 4 types of norms of a matrix:

1-Norm	Maximum of the sum of the absolute values for the columns
2-Norm	Maximum of the sum of the absolute values for the rows
Frobenius Norm	Square root of the trace of (t(A)A)
Infinity Norm	Square root of the maximum of the magnitudes of the Eigenvalues of (t(A)A)

Constraints

Input can only be with maximum dimension limitations of (700 x 700).

Examples

flmatrix <- FLMatrix("tblMatrixMulti", 5,"MATRIX_ID","ROW_ID","COL_ID","CELL_VAL")
resultFLVector <- FLMatrixNorm(flmatrix,4)

Fuzzy-Logix/AdapteR documentation built on May 6, 2019, 5:07 p.m.