Raster Calculator only giving one output

1190
1
10-26-2016 09:22 AM
EmmaSpence
New Contributor

I am attempting to add together three layers of data (see attached image) that all have the same extent, cell size, projection, etc. When I add them together using the raster calculator ("2015_95" + "2014_95"+"2013_95") the only output is where the three layers overlap.  

What I am trying to get are values ranging from 1-3, 1 where there is only one year, 2 where there are 2 years that over lap and 3 where all years overlap.

Does anyone know what I am doing wrong??

0 Kudos
1 Reply
DarrenWiens2
MVP Honored Contributor

Have you tried setting the output extent environment to the largest raster (provided it covers the entire area), or a feature class that covers the entire area of interest?