predictor screening

Alma1 — Wed, 20 Jun 2018 13:22:05 GMT

Hi,

After running predictor screening the out put has a column named contribution , portion and rank . Is there any unit for contribution ? Is this % is so why the some of all the contributions doest end up to 100?

Re: predictor screening

Mark_Bailey — Wed, 20 Jun 2018 13:43:28 GMT

The Predictor Screening platform uses bootstrap forests for models. The contribution of each predictor is determined by this model. The description in JMP Help for bootstrap forests says:

Column Contributions

Displays a report that shows each input column’s contribution to the fit. The report also shows:

– The total number of splits defined by a column.

– The total G2 (for a categorical response) or SS, sum of squares (for a continuous response), attributed to the column.

– A bar chart of G2 or SS.

– The proportion of G2 or SS attributed to the column.

topic Re: predictor screening in Discussions

predictor screening

Re: predictor screening