Keyword Error: calling as.geodata function in geoR with rpy2
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I am getting "SyntaxError: keyword can't be an expression" in a script I am working on.

I am using rpy2 (and the R package geoR) in Python to work with a data table that is retrieved from a PostgreSQL database using R's database functions.  The data is spatial data with coordinates and 2 columns of numerical data that will be used in a geostatistical model. 

After the database query call, the dataframe object x lookes like this if printed:

    easting northing location attrib1 attrib2    category
1  658394.3 204987.5       p1         4.91        26.17 soil
2  658657.1 205116.7       p2         4.85        27.43 soil
...

I create an object for the geoR functions like this:

from rpy2.robjects.packages import importr
geo = importr('geoR')

Calling the geoR function as 

y=geo.as_geodata(x)  

works, BUT without argument data.col, it assigns the location attribute as the data attribute.  (First column after coordinate attributes is default.)

Trying:

y=geo.as_geodata(x,geo.data_col="4:5")

produces: SyntaxError: keyword can't be an expression

I can't seem to get around it. I have looked at a few posts here and looked around online, but I can't figure this one out.

Any suggestions would be greatly appreciated.

Thank you.

-Damian



