topic Re: Clustering locations based on distance in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Clustering-locations-based-on-distance/m-p/460874#M24069 <P>One way is to convert the lat-long to UTM coordinates and use euclidian distance for clustering (the distance between UTM coordinates approximates the local distance in meters).</P> <P>&nbsp;</P> <P>To do the conversion, look at</P> <P>&nbsp;</P> <P><A href="https://communities.sas.com/t5/SAS-Communities-Library/Convert-LAT-LONG-to-UTM-and-back/ta-p/221779" target="_self">https://communities.sas.com/t5/SAS-Communities-Library/Convert-LAT-LONG-to-UTM-and-back/ta-p/221779</A></P> Tue, 08 May 2018 22:12:47 GMT PGStats 2018-05-08T22:12:47Z Clustering locations based on distance https://communities.sas.com/t5/Statistical-Procedures/Clustering-locations-based-on-distance/m-p/460853#M24067 <P><SPAN>I have a simple data set with 3 fields - location name, latitude, and longitude.&nbsp; I have about 1,100 locations and want to cluster them into regions of about 15-16 locations each.&nbsp; The furthest distance I want to allow between any 2 locations within a region is 30 miles.&nbsp; What is my best approach to solving this problem?</SPAN></P> Tue, 08 May 2018 20:52:05 GMT https://communities.sas.com/t5/Statistical-Procedures/Clustering-locations-based-on-distance/m-p/460853#M24067 xuerebry 2018-05-08T20:52:05Z Re: Clustering locations based on distance https://communities.sas.com/t5/Statistical-Procedures/Clustering-locations-based-on-distance/m-p/460874#M24069 <P>One way is to convert the lat-long to UTM coordinates and use euclidian distance for clustering (the distance between UTM coordinates approximates the local distance in meters).</P> <P>&nbsp;</P> <P>To do the conversion, look at</P> <P>&nbsp;</P> <P><A href="https://communities.sas.com/t5/SAS-Communities-Library/Convert-LAT-LONG-to-UTM-and-back/ta-p/221779" target="_self">https://communities.sas.com/t5/SAS-Communities-Library/Convert-LAT-LONG-to-UTM-and-back/ta-p/221779</A></P> Tue, 08 May 2018 22:12:47 GMT https://communities.sas.com/t5/Statistical-Procedures/Clustering-locations-based-on-distance/m-p/460874#M24069 PGStats 2018-05-08T22:12:47Z