DataLab is a compact statistics package aiming at exploratory data analysis. Please visit the DataLab Web site for more information....

Home Programming DataLab DLabPascal Data Access and GUI Control PCA PCAGui
See also: TFrmPCA, Calculate (FrmPCA), Scaling 

PCAGui

Declaration: PCAGui(Scaling: integer): integer;
Starts the graphical user interface of the principal component analysis and sets the scaling mode. The Scaling parameter controls the type of preprocessing of the data:
0 ... no scaling at all
1 ... mean centering
2 ... standardization (mean = 0, stand.dev. = 1.0)

The function returns the following error codes:

 0 ... everything is ok
-1 ... invalid scaling mode