https://community.jmp.com/t5/Discussions/How-are-calculated-quot-Contribution-quot-in-Predictor-Screening/m-p/477579#M72185 <P>The Contribution column in Predictor Screening corresponds to the Column Contributions you'll find in JMP's and JMP Pro's other decision tree-based platforms (Partition, Bootstrap Forest, Boosted Tree). The values in the column are the total sum of squares (for continuous responses) or G^2 (for categorical responses) attributed to each predictor, specifically taken from a Bootstrap Forest model with default settings (except the number of trees, which can be specified). See <A href="https://www.jmp.com/support/help/en/16.2/#page/jmp/splitting-criterion.shtml#" target="_blank" rel="noopener">this help page</A> for the calculations, and if you haven't worked with decision trees before, I recommend reading the <A href="https://www.jmp.com/support/help/en/16.2/#page/jmp/partition-models.shtml#" target="_blank" rel="noopener">Partition help</A> more generally to better understand these calculations.</P> Fri, 08 Apr 2022 18:02:38 GMT Ross_Metusalem 2022-04-08T18:02:38Z https://community.jmp.com/t5/Discussions/How-are-calculated-quot-Contribution-quot-in-Predictor-Screening/m-p/477279#M72169 <P>Hello,</P><P>&nbsp;</P><P>I would like to know precisely with the formula, how are calculated the contributions in Predictor Screening ?<BR /><BR />Best regards,</P><P>&nbsp;</P><P>Sophie</P> Fri, 09 Jun 2023 00:47:50 GMT https://community.jmp.com/t5/Discussions/How-are-calculated-quot-Contribution-quot-in-Predictor-Screening/m-p/477279#M72169 SophieC32 2023-06-09T00:47:50Z https://community.jmp.com/t5/Discussions/How-are-calculated-quot-Contribution-quot-in-Predictor-Screening/m-p/477579#M72185 <P>The Contribution column in Predictor Screening corresponds to the Column Contributions you'll find in JMP's and JMP Pro's other decision tree-based platforms (Partition, Bootstrap Forest, Boosted Tree). The values in the column are the total sum of squares (for continuous responses) or G^2 (for categorical responses) attributed to each predictor, specifically taken from a Bootstrap Forest model with default settings (except the number of trees, which can be specified). See <A href="https://www.jmp.com/support/help/en/16.2/#page/jmp/splitting-criterion.shtml#" target="_blank" rel="noopener">this help page</A> for the calculations, and if you haven't worked with decision trees before, I recommend reading the <A href="https://www.jmp.com/support/help/en/16.2/#page/jmp/partition-models.shtml#" target="_blank" rel="noopener">Partition help</A> more generally to better understand these calculations.</P> Fri, 08 Apr 2022 18:02:38 GMT https://community.jmp.com/t5/Discussions/How-are-calculated-quot-Contribution-quot-in-Predictor-Screening/m-p/477579#M72185 Ross_Metusalem 2022-04-08T18:02:38Z