From Planimate Knowledge Base
Q:How does a PDF table work?
A:The rows of Column 1 should contain the values that can be returned from sampling.
The rows of Columns 2 and beyond should contain the probability of that row's value being chosen, expressed as a percentage figure.
The rows in columns 2 and beyond should sum to 100.
When you refer to the table in a Distribution Pattern Dialog, or in a ‘Random’ routine operation, make sure you select the Attribute Mode called PDF Dist.
idkbase note 282