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Alma1
Alma1
Level III

predictor screening

Jun 20, 2018 09:22 AM (2253 views)

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?

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1 REPLY 1
Mark_Bailey
Staff Mark_Bailey
Staff

Re: predictor screening

Jun 20, 2018 09:43 AM (2249 views)  |  Posted in reply to message from Alma1 06-20-2018

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.

 

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