topic Re: How is a dash handled in OLS for ArcGIS 10.3 in Spatial Statistics Questions https://community.esri.com/t5/spatial-statistics-questions/how-is-a-dash-handled-in-ols-for-arcgis-10-3/m-p/193322#M612 <HTML><HEAD></HEAD><BODY><P>The first step would be to make sure it is a numeric field.&nbsp; Since you have both values and dashes it sounds like a string field.&nbsp; Beyond that, if you have missing data or null values, the tool will throw out the whole record and it will not be included in the analysis.&nbsp; To avoid those records being thrown out, you should find a way to predict or model the value at that location or use the average value -- whichever makes sense for your analysis.</P></BODY></HTML> Wed, 16 Mar 2016 20:51:27 GMT JenoraD_Acosta 2016-03-16T20:51:27Z How is a dash handled in OLS for ArcGIS 10.3 https://community.esri.com/t5/spatial-statistics-questions/how-is-a-dash-handled-in-ols-for-arcgis-10-3/m-p/193321#M611 <HTML><HEAD></HEAD><BODY><P>I am performing a regression in ArcGIS with the OLS tool.&nbsp; I have a few values which are dashes representing no data.&nbsp; How will the software handle these and should I make any changes to these values?</P></BODY></HTML> Wed, 16 Mar 2016 15:51:24 GMT https://community.esri.com/t5/spatial-statistics-questions/how-is-a-dash-handled-in-ols-for-arcgis-10-3/m-p/193321#M611 SteveCline 2016-03-16T15:51:24Z Re: How is a dash handled in OLS for ArcGIS 10.3 https://community.esri.com/t5/spatial-statistics-questions/how-is-a-dash-handled-in-ols-for-arcgis-10-3/m-p/193322#M612 <HTML><HEAD></HEAD><BODY><P>The first step would be to make sure it is a numeric field.&nbsp; Since you have both values and dashes it sounds like a string field.&nbsp; Beyond that, if you have missing data or null values, the tool will throw out the whole record and it will not be included in the analysis.&nbsp; To avoid those records being thrown out, you should find a way to predict or model the value at that location or use the average value -- whichever makes sense for your analysis.</P></BODY></HTML> Wed, 16 Mar 2016 20:51:27 GMT https://community.esri.com/t5/spatial-statistics-questions/how-is-a-dash-handled-in-ols-for-arcgis-10-3/m-p/193322#M612 JenoraD_Acosta 2016-03-16T20:51:27Z