https://community.esri.com/t5/new-to-gis-questions/rossmo-formula-is-it-possible/m-p/1098808#M1991 <P>I am fairly new to ArcGis but I plan to take the 17 free tutorials that are offered to help me familiarize with the program.&nbsp;</P><P>&nbsp;</P><P>I am wondering if it's possible to use the Rossmo Formula as a method of geographic profiling with ArcGis. It involves this formula:&nbsp;</P><DIV class="">&nbsp;</DIV><P><IMG src="https://i.redd.it/v4qf9mxddgv31.png" border="0" /></P><P>&nbsp;</P><P>making a scaled grid over a map, using the above formula to calculate a value for each square, then have a heat map created based on those values. Note: while X and Y are the coordinate numbers that one would assign on the grid, values such as f, g and B are variable, and I wonder if there is a function similar to Desmos, where you are able to change the variable values on a sliding scale.&nbsp;</P><P>&nbsp;</P><P>Thank you for your time! I really appreciate you trying to help me, if you can. Right now I am not so concerned about the method of doing this, only that if it is possible in the first place.&nbsp;</P> Thu, 16 Sep 2021 02:51:26 GMT KannaTenjo1 2021-09-16T02:51:26Z https://community.esri.com/t5/new-to-gis-questions/rossmo-formula-is-it-possible/m-p/1098808#M1991 <P>I am fairly new to ArcGis but I plan to take the 17 free tutorials that are offered to help me familiarize with the program.&nbsp;</P><P>&nbsp;</P><P>I am wondering if it's possible to use the Rossmo Formula as a method of geographic profiling with ArcGis. It involves this formula:&nbsp;</P><DIV class="">&nbsp;</DIV><P><IMG src="https://i.redd.it/v4qf9mxddgv31.png" border="0" /></P><P>&nbsp;</P><P>making a scaled grid over a map, using the above formula to calculate a value for each square, then have a heat map created based on those values. Note: while X and Y are the coordinate numbers that one would assign on the grid, values such as f, g and B are variable, and I wonder if there is a function similar to Desmos, where you are able to change the variable values on a sliding scale.&nbsp;</P><P>&nbsp;</P><P>Thank you for your time! I really appreciate you trying to help me, if you can. Right now I am not so concerned about the method of doing this, only that if it is possible in the first place.&nbsp;</P> Thu, 16 Sep 2021 02:51:26 GMT https://community.esri.com/t5/new-to-gis-questions/rossmo-formula-is-it-possible/m-p/1098808#M1991 KannaTenjo1 2021-09-16T02:51:26Z https://community.esri.com/t5/new-to-gis-questions/rossmo-formula-is-it-possible/m-p/1098839#M1992 <P><A href="https://en.wikipedia.org/wiki/Rossmo%27s_formula" target="_blank">Rossmo's formula - Wikipedia</A>&nbsp;states that Manhattan distances are used so you would probably need to do parts/all outside Pro directly since scipy implements the necessary distance calculations and you could exploit NumPy to do the calculations using arcpy's RasterToNumPyArray and NumPyArraytoRaster to facilitate product export/import back into Pro.</P><P>So make sure you brush up on Python and NumPy in your lesson plan strategy</P> Thu, 16 Sep 2021 08:36:56 GMT https://community.esri.com/t5/new-to-gis-questions/rossmo-formula-is-it-possible/m-p/1098839#M1992 DanPatterson 2021-09-16T08:36:56Z