Hello,
I am trying to find a way to compare the actual debris flow runout to a simulated runout.(Both Rasters) and quantify the results. A simple difference between areas is too coarse. Would it be possible to create a comparison so that it informs true positves(simulated=actual),false postives(simulated present when not actual) and false negatives(no simulated but actual there) and negatives ( no simulated no actual)? image attached for reference.
Or any other approach?
Thank you
An overview of the Logical Math toolset—ArcGIS Pro | Documentation
many functions in the above for condition checking.
If you want to provide a specific classification, then you could use these to provide the classes
Is Null (Spatial Analyst)—ArcGIS Pro | Documentation
Con (Spatial Analyst)—ArcGIS Pro | Documentation
2 rasters, A and B
conceptually
Con(IsNull(A) and IsNull(B), 0, Con(IsNull(A), 1, Con(IsNull(B), 2, 3))) # check the closing brackets not near an IDE
Thank you Dan! I shall give that a go.