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Home MathPack Matrix Classes TIntMatrix, TMatrix and TMat3D Methods MeanCenterRows
See also: StandardizeRows, MeanCenterColumns, MeanCenter 

MeanCenterRows

Unit: SDL_matrix
Class: TMatrix
Declaration: procedure MeanCenterRows (means: TVector);

The method MeanCenterRows subtracts the mean of each row of matrix from the elements in that row. This means that the elements of the data matrix are shifted in a way that each row of the matrix has a zero mean. The means of all rows are returned in the parameters means.

Please note that size of the vector parameter means has to be equal to NrOfRows. The parameter means may be set to NIL, if these results are not needed.

Hint: Background information on mean-centering of data can be found in Fundamentals of Statistics.

 

Last Update: 2011-Feb-07