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Excluding "NoData" in raster percentile calculation

Question asked by tonalca6864 on Jul 16, 2015
Latest reply on Jul 17, 2015 by tonalca6864



I'm trying to calculate percentiles out of a floating point raster.

It works BUT it includes the NoData in the calculation so I don't get what I need.


Is there a way to exclude the NoData from this calculation?


Many thanks


env.workspace = r"D:\PROGRAMMES\LFP_Source_Rocks\ArcGIS\00_LFP_GLOBAL\00_UPWELLING\OUTPUT_Test.gdb"
raster = env.workspace + "\\" + "percentile"
array = arcpy.RasterToNumPyArray(raster)
array = scipy.sort(array)
per = 10
a = scipy.percentile(array,per)
print a