How can I calculate the VIF for the nth nominal factor?
When JMP reports on nominal factors in the Expanded Estimates table, all coefficients are visible. However, the Expanded Estimates table does not contain VIFs as an output option. The Parameter Estimates table does, however, it only reports VIFs for n-1 nominal factors. One can find the remaining estimate by simply assuring that the nominal coefficients sum to zero in accordance with JMPs conve...
