https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885396#M10542 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot from 2023-07-19 10-34-54.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/85908iFC44228F3F4A6A67/image-size/medium?v=v2&amp;px=400" role="button" title="Screenshot from 2023-07-19 10-34-54.png" alt="Screenshot from 2023-07-19 10-34-54.png" /></span></P> Wed, 19 Jul 2023 04:36:01 GMT Dan19 2023-07-19T04:36:01Z https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885344#M10540 <P>Hello!<BR />I am reading SAS documentation regarding&nbsp;&nbsp;Interactive binning node. I saw the formula of Gini statistic (image attached). The Gini formula seems not to be standard one. So, it's interesting to me how this formula is derived, and is there a link to, e.g. an article, which explains this formula? Or can someone explain it?<BR />Thanks!<span class="lia-inline-image-display-wrapper lia-image-align-right" image-alt="Screenshot from 2023-07-19 01-21-28.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/85897i87DB255D466326AF/image-size/medium?v=v2&amp;px=400" role="button" title="Screenshot from 2023-07-19 01-21-28.png" alt="Screenshot from 2023-07-19 01-21-28.png" /></span></P> Tue, 18 Jul 2023 19:23:58 GMT https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885344#M10540 Dan19 2023-07-18T19:23:58Z https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885353#M10541 <P>I suggest also providing a similar link to what you consider the "standard".</P> <P>It is not impossible that the one in the SAS documentation is equivalent just different calculation order or expression.</P> <P>&nbsp;</P> <P>Caveat: not any expertise in Gini but some experience with alternate calculation methods.</P> Tue, 18 Jul 2023 20:05:26 GMT https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885353#M10541 ballardw 2023-07-18T20:05:26Z https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885396#M10542 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot from 2023-07-19 10-34-54.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/85908iFC44228F3F4A6A67/image-size/medium?v=v2&amp;px=400" role="button" title="Screenshot from 2023-07-19 10-34-54.png" alt="Screenshot from 2023-07-19 10-34-54.png" /></span></P> Wed, 19 Jul 2023 04:36:01 GMT https://communities.sas.com/t5/SAS-Data-Science/Gini-statistic-in-Interactive-binning-node/m-p/885396#M10542 Dan19 2023-07-19T04:36:01Z