[R] Spatial Statistics on Grids

[Jonathan Greenberg]

Peter:

Definitely check out the sp package and the rgdal package -- these will 
allow you ACCESS to the raster data, but can you be more specific about 
what sort of "spatial distributions" you are talking about?  There are a 
lot of "non-spatial" packages in R which could be used to generate the 
sort of statistics you might be interested in once your data is 
"properly formatted" (e.g. in the description you have below, you might 
use rgdal to help covert the data to "vector" format, e.g. subset out 
all "1"s and make a data frame of x,y,value of the cell).  After all, 
many "spatial" statistics are just analyses with two predictors 
variables (x and y) -- there's not necessarily anything unique to 
spatial data analysis once you get past data format.

--j

Don MacQueen wrote:
> This might be a good question to take to R-sig-geo.
>
> Have you looked at any of the R packages for spatial analysis? You can 
> download their reference manuals, or go their websites, to try to 
> figure out which one might be good.
>
> Or, go to the CRAN website, click on Task Views on the left, thence to 
> the "Spatial" link.
>
> -Don
>
>
> At 4:21 PM +0200 6/23/09, Peter Biber wrote:
>> Dear colleagues,
>>
>> I'm searching for methods to analyze spatial distributions of cells with
>> certain properties in a regular grid. For instance, consider a grid, 
>> where a
>> part of the cells have the property "0", and the others have the 
>> property
>> "1". I'm looking for statistics I could use for characterizing the 
>> spatial
>> distribution of the "1-cells".
>>
>> Does anyone know about R-packages, where such methods are implemented?
>>
>> Best regards
>> Peter
>>
>>
>>
>>
>>
>>     [[alternative HTML version deleted]]
>>
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