topic Re: Statistics table in Geoprocessing Questions

Area Cross tab statistics

jaykapalczynski — Mon, 18 Apr 2016 18:42:55 GMT

I have a polygon feature with different names for each polygon

I have a habitat raster layer with a bunch of classifications (this is clipped to all the polygons above)

I want to run statistics on the Habitat layer where it falls inside the polygon layer, its already clipped so we're good there.

Result: I am looking for the polygon feature name with the statistics of each habitat type and their sum in that polygon

Polygon Trees Water developed

Polygon x 50 21 55

Polygon z 152 66 88

ANY IDEAS on how to do this?

Re: Statistics table

NeilAyres — Mon, 18 Apr 2016 19:03:59 GMT

This would normally involve a intersect or union of the inputs, then a summary of the output.

Have you looked here (this for v10.3x):

An overview of the Analysis toolbox—Help | ArcGIS for Desktop

Overlay analysis approaches—Help | ArcGIS for Desktop

An overview of the Overlay toolset—Help | ArcGIS for Desktop

Summary Statistics—Help | ArcGIS for Desktop

Re: Statistics table

DanPatterson_Retired — Mon, 18 Apr 2016 19:09:53 GMT

since you mention ... raster... you could convert your polygon layer to a raster and use Combine—Help | ArcGIS for Desktop

which will give you the unique combinations of your classes between 2 or more rasters. The cell counts will give you the areas of intersection of the input variables

Re: Statistics table

MervynLotter — Mon, 18 Apr 2016 19:09:54 GMT

Hi Jay

I think the Tabulate Area tool under the Zonal Stats toolbox will do the

trick.

Cheers

Re: Statistics table

curtvprice — Tue, 19 Apr 2016 00:22:31 GMT

Tabulate Area basically does the raster analysis that Dan describes.

Re: Statistics table

DanPatterson_Retired — Tue, 19 Apr 2016 02:39:58 GMT

with the addition of being able to see it, so the choice depends on whether you need just the table or the map and the tabular results...the tables but combine ensures you have the same cell sizes if both the zone and other rasters have the same cell sizes etc.