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Home MathPack Matrix Classes TIntMatrix, TMatrix and TMat3D Methods StandardizeColumns
See also: StandardizeRows, MeanVar, StandardizeNumCellColumns, MeanCenterColumns, MeanCenter, Standardize, QNormalizeColumns 

StandardizeColumns

Unit:SDL_matrix
Class:TMatrix
Declaration:procedure StandardizeColumns (means, stddevs: TVector);

The method StandardizeColumns standardizes the data columns of the matrix. This means that the elements of the data matrix are shifted and scaled in a way that each column of the matrix has a zero mean and unit standard deviation.

The means, and the standard deviations of all columns are returned in the parameters means and stddevs. The size of these vector parameters are automatically adjusted to NrOfColumns. The parameters means and stddevs may be set to NIL, if these results are not needed.

Hint: Background information on the standardization of data can be found in Fundamentals of Statistics.


Last Update: 2023-Feb-06