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Raster addition where some rasters are null and some have values

Question asked by rjaecks on May 19, 2014
Latest reply on May 20, 2014 by rjaecks
I have five rasters with values between 0.1-1 and null values everywhere else.  The values on the rasters overlap in some areas, but not everywhere (i.e. two rasters may have a value while the other three are null at a given xy).  I want to be able to sum all of the rasters together without ending up with a null value.  For example, at a given xy location three of the rasters have a 1 and the other two rasters are null.  When I add them together I want a resulting raster with a value of 3 and not null.  I think I need to convert the null values to zeroes, but maybe there is an easier way.  What's the best way to do this?