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How to analyse data

Question asked by kofilartey on Apr 7, 2016
Latest reply on Apr 11, 2016 by kofilartey

I am trying to do some form of correlation analysis between elevation and rainfall erosivity, but not sure whether this is the right way. I used the fishnet tool to evenly distribute a set of points over a polygon. Next i used the extract multiple values to point tool in spatial analyst - extraction to combine a DEM and the shapefile of points to extract from the DEM points with elevation and coordinates. Now the output will be joined to the rainfall erosivity map from which some form of correlation analysis can be performed, i believe. However there is a problem. The output from the multiple point extraction was two empty columns, one from the DEM and the other from the shape file. I believe i am not doing something right. I welcome





suggestions to give me direction. Attached is the shape fileFishnet.JPG