Statistics

3611
7
Jump to solution
03-25-2015 01:55 PM
jaykapalczynski
Frequent Contributor

I have a polygon layer with a bunch of polygons.

I have a raster Land Cover with a bunch of land cover types.

I want to process the data and come up with statistics of how much of each land cover type is in each of the polygons.

No idea where to start.  Is there a tool that can help?

Hope I explained well enough.  Thanks

0 Kudos
1 Solution

Accepted Solutions
JayantaPoddar
MVP Esteemed Contributor

Hi,

Apart from Darren Wiens​'s suggestion, you could follow another workaround.

1) Convert the LandCover Raster to polygon.

2) Use tabulate intersection to get the area in percentage.

Hope it helps!!!



Think Location

View solution in original post

0 Kudos
7 Replies
jaykapalczynski
Frequent Contributor

Oh and the raster is clipped to all the Polygons.

0 Kudos
DarrenWiens2
MVP Honored Contributor

Zonal Statistics as Table should do this for you.

0 Kudos
jaykapalczynski
Frequent Contributor

I ran that and its not really what I was going for....

The raster data has a bunch of different land cover types.  I was hoping for an output for each polygon with percentages for each of the land cover types ....or total counts of Raster cells for each type I can then calculate % of each type.

Polygon

Land Cover type 1     12%

Land Cover type 2     22%

Land Cover type 3     15%    

Land Cover type 4     32%

0 Kudos
DarrenWiens2
MVP Honored Contributor

Oh, you may want to check Tabulate Area. With both of these, if you have overlapping polygons, you will have to process zone features individually, since the zones are converted to raster (flattened), internally.

0 Kudos
JayantaPoddar
MVP Esteemed Contributor

Hi,

Apart from Darren Wiens​'s suggestion, you could follow another workaround.

1) Convert the LandCover Raster to polygon.

2) Use tabulate intersection to get the area in percentage.

Hope it helps!!!



Think Location
0 Kudos
jaykapalczynski
Frequent Contributor

Jayanta...thanks

The big question is would this work with overlapping polygons?

0 Kudos
JayantaPoddar
MVP Esteemed Contributor

The area % would be calculated for each feature irrespective of the overlapping extent.



Think Location
0 Kudos