how to get dmodx and T2 for predictions in PLS

Question

In the PLS-module it is straightforward to save the prediction formula and the standard error of prediction formula.

Is there also a way to save the DModX / DModY / T2 for the predictions, for additional outlier detection ?

Thanks !

mauritz · Answer

I would love to be able to do something similar for PLS : the PC’s of PCA will however not suffice : I really would like to see if there are outliers in PLS-factors for Dmodx en T2 !
Mauritz

Byron_JMP · Answer

Something like this?

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Tiretread.jmp" );
//DModX formlula from the Principal Components Platform
obj1=dt << Principal Components(
      Y( :ABRASION, :MODULUS, :ELONG, :HARDNESS ),
      Estimation Method( "Default" ),"on Correlations");
obj1 << Save DMODX( 3 );
formula1= :DModX<<get formula();

//T Square formlula from the Multivariate Platform
obj2=dt<<Multivariate(
      Y( :ABRASION, :MODULUS, :ELONG, :HARDNESS ));
obj2 << T Square(1, Save T Square);

Bill_Worley · Answer

My apologies, I should have checked to see if those were saved as formula columns in the PLS platform.

You can get DModX and T square formulas from the Prinipal Components platform if that helps.