topic Re: How to predict the value for a location using other predictor variables? in Spatial Statistics Questions https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124833#M437 <HTML><HEAD></HEAD><BODY><SPAN>Given the problem that you stated I do not know what you mean by "spatial relationships". It sounds like a simple OLS or GWR (both available in ArcGIS) would work. If for some reason these approaches will not work consider imputation. For an imputation analysis you will need to use a statistical software. R has very nice capacity to read/write GIS data and very mature imputation approaches (and is free). Take a look at this thread. </SPAN><BR /><BR /><A href="http://forums.arcgis.com/threads/25949-cluster-analysis-based-on-multiple-variables?highlight=imputation">http://forums.arcgis.com/threads/25949-cluster-analysis-based-on-multiple-variables?highlight=imputation</A></BODY></HTML> Thu, 26 May 2011 16:37:47 GMT JeffreyEvans 2011-05-26T16:37:47Z How to predict the value for a location using other predictor variables? https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124832#M436 <HTML><HEAD></HEAD><BODY><SPAN>Hi all</SPAN><BR /><SPAN>I have a point shapefile that has 3 variables like precipitation, temperature, and the runoff. I am using precipitation and temperature as predictor variables and runoff as dependent variable. Using the spatial relation of these variables, I need to predict runoff for the points in a shapefile for any changes in temperature and precipitation as shown below. </SPAN><BR /><BR /><SPAN>Eg </SPAN><BR /><SPAN>ID PPT TEMP RUNOFF</SPAN><BR /><SPAN>1 110 25 40</SPAN><BR /><SPAN>2 100 18 34</SPAN><BR /><BR /><SPAN>ID PPT TEMP RUNOFF</SPAN><BR /><SPAN>1 150 24 ?</SPAN><BR /><SPAN>2 90 17 ?</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>I think this problem is different then interpolation because I am not interested in predicting for unknown locations as well as I have multiple variables to be taken care of. I am just wondering if I can perfom any test like this in ArcGIS? If so, which tool should I use? Any light on this area would be highly appreciated?</SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Tue, 24 May 2011 04:04:30 GMT https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124832#M436 fabefabe 2011-05-24T04:04:30Z Re: How to predict the value for a location using other predictor variables? https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124833#M437 <HTML><HEAD></HEAD><BODY><SPAN>Given the problem that you stated I do not know what you mean by "spatial relationships". It sounds like a simple OLS or GWR (both available in ArcGIS) would work. If for some reason these approaches will not work consider imputation. For an imputation analysis you will need to use a statistical software. R has very nice capacity to read/write GIS data and very mature imputation approaches (and is free). Take a look at this thread. </SPAN><BR /><BR /><A href="http://forums.arcgis.com/threads/25949-cluster-analysis-based-on-multiple-variables?highlight=imputation">http://forums.arcgis.com/threads/25949-cluster-analysis-based-on-multiple-variables?highlight=imputation</A></BODY></HTML> Thu, 26 May 2011 16:37:47 GMT https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124833#M437 JeffreyEvans 2011-05-26T16:37:47Z Re: How to predict the value for a location using other predictor variables? https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124834#M438 <HTML><HEAD></HEAD><BODY><SPAN>Hi Kami, </SPAN><BR /><BR /><SPAN>Examining the relationships between the variables that you have in your data can be done using Ordinary Least Squares regression and Geographically Weighted Regression, both available in ArcGIS.&nbsp; To get started using OLS and GWR, you may want to check out the </SPAN><A href="http://training.esri.com/acb2000/showdetl.cfm?DID=6&amp;Product_ID=942">Regression Analysis Basics</A><SPAN> seminar, which is free from the Virtual Campus website.</SPAN><BR /><BR /><SPAN>You may also want to check out the other resources available for spatial statistics here:&nbsp; </SPAN><A href="http://esriurl.com/spatialstats">http://esriurl.com/spatialstats</A><SPAN>.</SPAN><BR /><BR /><SPAN>Hope this helps.</SPAN><BR /><BR /><SPAN>Lauren Rosenshein</SPAN><BR /><SPAN>Geoprocessing Product Engineer</SPAN></BODY></HTML> Tue, 14 Jun 2011 17:39:52 GMT https://community.esri.com/t5/spatial-statistics-questions/how-to-predict-the-value-for-a-location-using/m-p/124834#M438 LaurenRosenshein 2011-06-14T17:39:52Z