Contents - Index

3D-biplot

Under the main menu Biplots, click 3D-biplot.

A 3D biplot is made of the first three principal components. It is usually difficult to visualize a 3D biplot on a 2D plane, but a rotating 3D biplot can be very useful when the first two PC's does not explain most of the information.

As shown from this snapshot, the 3D biplot viewer allows you to do the following:

• Visualize a constantly rotating 3D biplot; 
• Adjust the rotation speed; 
• Freeze the image of an interesting pattern; 
• Rotate any of the three axes while holding the other two; 
• Visualize 2D biplots of PC1 vs PC2, PC1 vs PC3, and PC2 vs PC3; and
• Save the current view of the 3D biplot into a graphic file, in color or in black-white, which may be included in a publication.