topic Re: Model Odds ratios order in Discussions

Model Odds ratios order

MG85 — Fri, 09 Jun 2023 01:01:07 GMT

Hello,

does anyone know how to change the order for odds ratios calculation in a Nominal Logistic model?

Currently odds ratio are calculeted for No versus Yes and I would like to flip it to Yes vs No as it becomes easier to undestand for people who is not really familiar with this.

Any idea on how to change it?

Thanks

Marcello

Re: Model Odds ratios order

txnelson — Sat, 22 Apr 2023 12:46:27 GMT

I am running JMP 17 on Windows and it appears that the Odds Ratio order is dependent upon the Alphabetic order of the data. Data whose values of the Y variable were "No" and "Yes" was calculated "Yes vs. No". The same data, with the data changed to "2No" and "1Yes" was calculated "2No vs. 1Yes"

I ran the JSL from the Statistics Index example for Odds Ratios, just changing the values for the Sex column in the Big Class data table from "F" to "Yes" and then to "1Yes" and for "M" to "no" and then to "2No"

Names Default To Here( 1 );
Open( "$SAMPLE_DATA/Big Class.jmp" );
Fit Model(
	Y( :sex ),
	Effects( :height ),
	Personality( "Nominal Logistic" ),
	Run( Odds Ratios( 1 ) )
);

Re: Model Odds ratios order

Mark_Bailey — Tue, 25 Apr 2023 16:55:17 GMT

This platform respects the Value Order column property. You can define this property as another way to tell JMP which ratio you want.