4

I am running cell statistics in arcpy. Essentially I am summing together a folder of grd files to create a new grd representing their sum

This will eventually take place on a folder of 20,000 raster grds.

Is there a maximum number of raster datasets that can be processed by the cellStatistics tool?

5

The help for this tool does not explicitly state there is a limit but in a project about a year ago I was feeding it folders with many thousands of rasters and the performance was very poor. What I eventually did was SUM the rasters in batches of 100 then SUMMED the batched values. This ran much quicker and was easily implemented with a bit of looping in Python and ArcPy.

  • Good to know. I will probably do something like this once I get my 20k ready for summing together – jotamon Aug 28 '14 at 18:46
  • +1 For many reasons, sticking thousands of files in one folder is rarely a good idea. A better organization would have the files arranged into a hierarchy of folders, each containing far fewer datasets. That would practically force one to implement this (better) solution in the first place. – whuber Aug 29 '14 at 4:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.