topic Linear trend has to pass through the origin in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/linear-trend-has-to-pass-through-the-origin/m-p/725444#M10530 <HTML><HEAD></HEAD><BODY><SPAN>Hi - I need to interpolate a linear trend surface through a really big number of points but with the condition that the surface has to pass exactly through one of them, like the origin point.</SPAN><BR /><SPAN>I couldn't find any option for that in the trend tool so I though about creating a lot of points really close to the origin point to force the trend but since I already have so many points I get an out of memory error. </SPAN><BR /><SPAN>Does someone know if there is another way of doing this? I am using python to perform this analysis so I though about converting the points to a numpy array but so far I haven't found anything in numpy to calculate the trend.</SPAN><BR /><SPAN>Thanks a lot for your help!</SPAN><BR /><BR /><SPAN>Jose Luis Serrano</SPAN><BR /><SPAN>GIS Programmer/Analyst</SPAN></BODY></HTML> Tue, 14 Aug 2012 17:43:19 GMT JoseLuis_Serrano 2012-08-14T17:43:19Z Linear trend has to pass through the origin https://community.esri.com/t5/arcgis-spatial-analyst-questions/linear-trend-has-to-pass-through-the-origin/m-p/725444#M10530 <HTML><HEAD></HEAD><BODY><SPAN>Hi - I need to interpolate a linear trend surface through a really big number of points but with the condition that the surface has to pass exactly through one of them, like the origin point.</SPAN><BR /><SPAN>I couldn't find any option for that in the trend tool so I though about creating a lot of points really close to the origin point to force the trend but since I already have so many points I get an out of memory error. </SPAN><BR /><SPAN>Does someone know if there is another way of doing this? I am using python to perform this analysis so I though about converting the points to a numpy array but so far I haven't found anything in numpy to calculate the trend.</SPAN><BR /><SPAN>Thanks a lot for your help!</SPAN><BR /><BR /><SPAN>Jose Luis Serrano</SPAN><BR /><SPAN>GIS Programmer/Analyst</SPAN></BODY></HTML> Tue, 14 Aug 2012 17:43:19 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/linear-trend-has-to-pass-through-the-origin/m-p/725444#M10530 JoseLuis_Serrano 2012-08-14T17:43:19Z