topic Forest-based Classification and Regression tool - Validation Question in ArcGIS Pro Questions https://community.esri.com/t5/arcgis-pro-questions/forest-based-classification-and-regression-tool/m-p/575863#M25260 <HTML><HEAD></HEAD><BODY><P>**new to the community not sure if this is the correct space to post this**</P><P></P><P>Hi,</P><P></P><P>I'm assuming the "Training Data Excluded for Validation (%)" option takes a random subset from your data points to hold back. If I withhold 30% of my data, will it always be the same 30% of points? Or will it change each time I run the tool?</P><P></P><P>If it does change each time, is there any way to change it so that it will use the same validation points? I have a sneaking feeling I may have to edit the python script, but my programming knowledge is pretty limited!</P><P></P><P>Any advice is welcome!</P></BODY></HTML> Fri, 31 Jul 2020 13:49:10 GMT neilRenwick1 2020-07-31T13:49:10Z Forest-based Classification and Regression tool - Validation Question https://community.esri.com/t5/arcgis-pro-questions/forest-based-classification-and-regression-tool/m-p/575863#M25260 <HTML><HEAD></HEAD><BODY><P>**new to the community not sure if this is the correct space to post this**</P><P></P><P>Hi,</P><P></P><P>I'm assuming the "Training Data Excluded for Validation (%)" option takes a random subset from your data points to hold back. If I withhold 30% of my data, will it always be the same 30% of points? Or will it change each time I run the tool?</P><P></P><P>If it does change each time, is there any way to change it so that it will use the same validation points? I have a sneaking feeling I may have to edit the python script, but my programming knowledge is pretty limited!</P><P></P><P>Any advice is welcome!</P></BODY></HTML> Fri, 31 Jul 2020 13:49:10 GMT https://community.esri.com/t5/arcgis-pro-questions/forest-based-classification-and-regression-tool/m-p/575863#M25260 neilRenwick1 2020-07-31T13:49:10Z