Irene,
I only know of 2 ways to do this, maybe others have a better suggestion. My methods take some editing or scripting. Below is PrinComp1 vs. PrinComp2 for the Iris.jmp data table. For this example I decided to make nonparametric density plots for each group (top left corner of biplot)
Steps:
- Save the intended PrinComps. This example saved 3.
- Select Fit Y by X. Plot Y( PrinComp2 ) and X( PrinComp1 ). Select Group By Species. Select Nopar Density.
- Right click on the framebox of this bivariate, select copy Frame Contents
- Right click on the framebox for the corresponding biplot; select paste Frame Contents
- Right click on that same biplot framebox and select customize. One at a time select each arrow, change the color to black and 2 wide. Then use the down arrow button to move taht arrow to be the last item in the list. repeat this for each arrow.
- Select OK
Another alternative is to create a Scatterplot Matrix plot of the saved PrinComp. Select GroupBy and the the type of density ellipse you want. You would have to write a graphics script to create the arrows from the loadings
