topic Re: Summary Statistics Script in Python Questions

Summary Statistics Script

SamanthaSmyth — Tue, 01 Apr 2014 20:04:07 GMT

Hi! I am attempting to write a script that will provide me with average NDVI pixel values in a raster, so I can later put the means into a time series. I keep getting an invalid syntax error in the "{case_field}" section of the code. This is an optional parameter that I do not think I want to utilize. Any input on what I am doing wrong would be very appreciated! Here is my script:

#Summary Statistics Tool.py
#Statistics_analysis(in_table, out_table, statistics_fields, {case_field})

#Import arcpy module
import arcpy
arcpy.env.workspace = r'D:\rmnp\SamSOrgNDVIData\TEST89\New folder'

#Local Variables
out_table= r'D:\rmnp\SamSOrgNDVIData\TEST89\New folders\\'

#Process: Summary Statistics
rastList=arcpy.ListRasters()
for rast in rastList:
arcpy.Statistics_analysis(rast, out_table + "_St1", ["MEAN"], "#")

Re: Summary Statistics Script

AnthonyGiles — Tue, 01 Apr 2014 20:43:18 GMT

Samantha,

If the variable is optional and you don't want to use it just ignore it totally in your script

Regards

Anthony

Re: Summary Statistics Script

NeilAyres — Wed, 02 Apr 2014 13:10:50 GMT

Errrr, doesn't Statistics_analysis work on tables or feature classes, not rasters.
Try GetRasterProperties_management, this will return the MEAN, STDEV, MIN, Max etc etc

Good luck,
Neil