topic Re: Geoprocessor Statistics paramater in ArcObjects SDK Questions

Geoprocessor Statistics paramater

JohnStephens — Wed, 18 Sep 2013 16:24:36 GMT

For the Statistics geoprocessor tool one of the parameters is the "statistics_fields". It calls for the fields you want to get statistics on as well as the type of statistic. In pyton, it looks like this (see 3rd param):

arcpy.Statistics_analysis("futrds", "C:/output/output.gdb/stats", [["Shape_Length", "SUM"]], "NM")

My question is, how do I set up this parameter in .NET?

Geoprocessor GP = new Geoprocessor();  Statistics stats = new Statistics(); stats.in_table = @"C:\Temp\Test\myRight.shp"; stats.out_table = @"C:\Temp\test.dbf"; stats.statistics_fields = "[['J_Fld','COUNT']]";  GP.Execute(stats, null);

I've tried sending it strings formatted in several different ways, an array like the one in python, and a IVariantArray with no luck.

Thanks.

Re: Geoprocessor Statistics paramater

JohnStephens — Tue, 24 Sep 2013 18:27:13 GMT

So, I went ahead and contacted ESRI support and figured out how to solve this problem. The parameter is set like this:

stats.statistics_fields = "J_Fld COUNT"; stats.case_field = "J_Fld";

Re: Geoprocessor Statistics paramater

KenBuja — Tue, 24 Sep 2013 18:49:30 GMT

The documentation on the parameters for geoprocessing tools has never been very good. Usually, when I run into a problem with the syntax, the first thing I'll do is to manually run the tool in ArcMap. I'll open the Results dialog and examine the messages for the Executing statement. This is the best way to figure out how the parameters should be entered for the different properties.