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Hello everyone, Thank you everyone for stepping up. I've received a lot of good advice. Sean and Andrew -- I got this error: 010067: Error in executing grid expression. Description: There was a problem executing the map algebra expression. Peggy -- I had already done a symbology map, and it looked good, but we thought a heat map would be better. Zach -- Yes, the data was exported to an equidistant projection. Ryan -- Thank you for introducing me to this program. I'm definitely interested in looking further into Crimestat. Jarlath -- I will look further into Open Heat Map also. I looked at the video, and I think I may be able to do some neat things with it. Ted -- The Empirical Bayesian kriging funtion seemed to work rather well. I got an interesting raster out of it. Josh -- The Inverse Distance Weight seemed to give me the results most closely to what I was looking for. I only wish that I could get it to extend beyond the extents of the input point layer; the outer corners of the county are clipped off. Otherwise it looks great. I'm going to look into some of the other tools that have been suggested as well. I should get some really neat maps out of them. Thanks again everyone for all your help. Phil Pierdomenico GIS Analyst, Philabundance On Tue, Mar 11, 2014 at 3:19 PM, Jarlath O'Neil-Dunne < [log in to unmask]> wrote: > Open Heat Map is another fun tool - http://www.openheatmap.com/ > > > On 3/11/2014 3:12 PM, David Ainley wrote: > > I think a heat map is possible using Google fusion tables as well... > > https://support.google.com/fusiontables/answer/1152262?hl=en > > > On Tue, Mar 11, 2014 at 3:05 PM, Jarlath O'Neil-Dunne < > [log in to unmask]> wrote: > >> ArcGIS does have a hot spot tool - >> http://resources.arcgis.com/en/help/main/10.2/index.html#//005p00000058000000 >> >> >> On 3/11/2014 1:23 PM, Philip Pierdomenico wrote: >> >>> Hello everyone, >>> I have been trying to create a heatmap in ArcMap 10.2. I have a point >>> layer of donors in a county, which has a numeric field denoting the total >>> amount donated in a year. I want to try to create a heatmap showing where >>> the most donations are coming from in the county. I searched the help >>> forums, which led me to the density tools. I've tried Kernel Density and >>> Point Density under the Spatial Analyst tools, but I keep getting error >>> messages. Am I completely on the wrong track? Can this even be done as I >>> am describing it? Any advice would be greatly appreciated. >>> Thanks, >>> Phil Pierdomenico >>> GIS Analyst, Philabundance >>> You can manage your subscription (including unsubscribing) by clicking >>> on this link: http://list.uvm.edu/cgi-bin/wa?SUBED1=vgis-l&A=1 >>> >> >> You can manage your subscription (including unsubscribing) by clicking on >> this link: >> http://list.uvm.edu/cgi-bin/wa?SUBED1=vgis-l&A=1 >> > > You can manage your subscription (including unsubscribing) by clicking on > this link: http://list.uvm.edu/cgi-bin/wa?SUBED1=vgis-l&A=1 > > > You can manage your subscription (including unsubscribing) by clicking on > this link: http://list.uvm.edu/cgi-bin/wa?SUBED1=vgis-l&A=1 > ------------------------------------------------------------------------- This list (CTGIS-L) is an unmoderated discussion list for all CT GIS Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://listserv.uconn.edu/ctgis-l.html