[R-sig-Geo] Deal with multiple factorlevel in one grid square

[Michael Sumner]

raster::extract(grid, poly, weights = TRUE) is a start. It returns a list
which is painful to deal with at first, but can be collected into one data
frame for standard summarizing.

I'm still a bit confused about whether you want an estimate of a cell
overlap in a polygon or something else.

Cheers, Mike

On Wed, 24 May 2017, 17:12 Miriam Püts <miriam.puets at thuenen.de> wrote:

> Hi everyone,
>
> I have the following problem: I have a personalized grid and a shape file
> with polygons representing sediment types. Now I would like to apply this
> grid to the Polygons to identify the sediment type most common within each
> grid. I tried it with rasterize, but here I can only chose last or first.
> Die you have any suggestions how I might get the sediment type for each
> raster cell?
>
> Thank you for your help!
>
> <°)))>< >°)))>< >°)))>< >°)))><
>
> Miriam Püts
> Marine Lebende Ressourcen/ Marine Living Resources
> Thünen-Institut für Seefischerei/ Thünen Institute of Sea fisheries
> Palmaille 9
> 22767 Hamburg (Germany)
>
> Tel:  +49 40 38905-105
> Mail: miriam.puets at thuenen.de
>
> _______________________________________________
> R-sig-Geo mailing list
> R-sig-Geo at r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo

-- 
Dr. Michael Sumner
Software and Database Engineer
Australian Antarctic Division
203 Channel Highway
Kingston Tasmania 7050 Australia

	[[alternative HTML version deleted]]