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Home MathPack OpenArrays Procedures and Functions CalcHatMatrix  
See also: InvertArray, CalcHatMatrix (Matrix)  
CalcHatMatrix 

The function CalcHatMatrix calculates the hat matrix of matrix Arr and stores the result in matrix HatMat (Arr is denoted as X, HatMat as H): H := X(X^{T}X)^{1}X^{T} The function returns the following error codes:0 ... everything is OK
