topic Re: What is the population field for Kernel Density? in ArcGIS Mapping and Charting Questions https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398173#M1354 <HTML><HEAD></HEAD><BODY><P>How<A href="http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/how-kernel-density-works.htm"> <STRONG>Kernel Density Works</STRONG> </A>... gives a few examples.&nbsp; What data are your working with? and What software would be useful to provide more examples</P></BODY></HTML> Sat, 27 Jan 2018 23:18:17 GMT DanPatterson_Retired 2018-01-27T23:18:17Z What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398172#M1353 <HTML><HEAD></HEAD><BODY><P>And when do you use none as the input in the dialog window?</P></BODY></HTML> Sat, 27 Jan 2018 22:22:39 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398172#M1353 __17 2018-01-27T22:22:39Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398173#M1354 <HTML><HEAD></HEAD><BODY><P>How<A href="http://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/how-kernel-density-works.htm"> <STRONG>Kernel Density Works</STRONG> </A>... gives a few examples.&nbsp; What data are your working with? and What software would be useful to provide more examples</P></BODY></HTML> Sat, 27 Jan 2018 23:18:17 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398173#M1354 DanPatterson_Retired 2018-01-27T23:18:17Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398174#M1355 <HTML><HEAD></HEAD><BODY><P>From the link that Dan shared:</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><EM>The population field could be used to weight some features more heavily than others, depending on their meaning, or to allow one point to represent several observations. For example, one address might represent a condominium with six units, or some crimes might be weighted more heavily than others in determining overall crime levels. For line features, a divided highway probably has more impact than a narrow dirt road, and a high-tension line has more impact than a standard electric pole.</EM></BLOCKQUOTE><P>Also the help for the tool itself&nbsp;<A class="link-titled" href="http://desktop.arcgis.com/en/arcmap/latest/tools/spatial-analyst-toolbox/kernel-density.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/spatial-analyst-toolbox/kernel-density.htm">Kernel Density—Help | ArcGIS Desktop</A>&nbsp;has a extended explanation of what you can specify (numeric field, shape if it contains Z values or None if each point should be counted as 1).</P></BODY></HTML> Sun, 28 Jan 2018 14:01:21 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398174#M1355 XanderBakker 2018-01-28T14:01:21Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398175#M1356 <HTML><HEAD></HEAD><BODY><P>Hi Dr.Patterson,</P><P>I am trying to do kernel density on a shape file . But when i try to use KDE, certain fields are not visible in the population field drop down.</P><P>Why is this so? I need the missing fields for my analysis</P><P><IMG alt="" class="image-1 jive-image j-img-original" src="/legacyfs/online/462003_Screenshot (152).png" /></P><P>Wondering if you had something for me?</P><P>Thank you!</P></BODY></HTML> Wed, 16 Oct 2019 09:32:33 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398175#M1356 rrjs67 2019-10-16T09:32:33Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398176#M1357 <HTML><HEAD></HEAD><BODY><P>Are those missing fields numeric?</P></BODY></HTML> Wed, 16 Oct 2019 10:45:59 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398176#M1357 NeilAyres 2019-10-16T10:45:59Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398177#M1358 <HTML><HEAD></HEAD><BODY><P>From the link I posted... you need point or line features... you have a polygon layer selected</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P><SPAN style="display: inline !important; float: none; background-color: #ffffff; color: #4c4c4c; font-family: 'Avenir Next W01','Avenir Next W00','Avenir Next','Avenir','Helvetica Neue',sans-serif; font-size: 17px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">It can be calculated for both point and line features.</SPAN></P></BLOCKQUOTE></BODY></HTML> Wed, 16 Oct 2019 11:25:43 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398177#M1358 DanPatterson_Retired 2019-10-16T11:25:43Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398178#M1359 <HTML><HEAD></HEAD><BODY><P>Hi Dan, it seems to be a point shapefile (see the top of the toc). I guess they are the centroids of the polygons.</P></BODY></HTML> Wed, 16 Oct 2019 12:15:16 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398178#M1359 XanderBakker 2019-10-16T12:15:16Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398179#M1360 <HTML><HEAD></HEAD><BODY><P>Ahhh, I was looking in the table of contents for the map</P></BODY></HTML> Wed, 16 Oct 2019 13:36:56 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398179#M1360 DanPatterson_Retired 2019-10-16T13:36:56Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398180#M1361 <HTML><HEAD></HEAD><BODY><P>Yes .It is the centroid for the polygons.</P><P>I am sorry about the table of contents, i highlighted the wrong layer.&nbsp;</P><P>But yes, i was working KDE on centroid of polygons.</P><P></P><P>Thank you everyone</P></BODY></HTML> Thu, 17 Oct 2019 06:03:26 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398180#M1361 rrjs67 2019-10-17T06:03:26Z Re: What is the population field for Kernel Density? https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398181#M1362 <HTML><HEAD></HEAD><BODY><P>Yes Mr.Ayres,</P><P>The fields are numeric. I have also tried to create new field and copies these values ( using field calculator).But still the fields wouldn't show.</P><P></P><P>Thank you everyone.</P></BODY></HTML> Thu, 17 Oct 2019 06:04:53 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/what-is-the-population-field-for-kernel-density/m-p/398181#M1362 rrjs67 2019-10-17T06:04:53Z