[STATSGRASS] [R-spatial-devel] speed of GRASS/R interface

[Thomas Adams]

Markus,

Thanks for the information; I have never tried this before, but when I 
do try, I get:

cvs login: warning: failed to open /Users/adams/.cvspass for reading: No 
such file or directory

With subsequent attempts I just get returned to my local prompt.

Regards,
Tom


Markus Neteler wrote:
> Today I downloaded 'sp' and 'spgrass6' from CVS (http://r-spatial.sf.net/),
> steps here to enable more people to try:
>
> # use empty password == <enter> key:
> cvs -d:pserver:anonymous at r-spatial.cvs.sourceforge.net:/cvsroot/r-spatial
> login
> # fetch classes:
> cvs -z3
> -d:pserver:anonymous at r-spatial.cvs.sourceforge.net:/cvsroot/r-spatial co -P
> sp
> cvs -z3
> -d:pserver:anonymous at r-spatial.cvs.sourceforge.net:/cvsroot/r-spatial co -P
> spgrass6
>
> # install from the same directory:
> R CMD INSTALL sp
> R CMD INSTALL spgrass6
>
> Then I tried the new classes: INCREDIBLY FAST!
>
> Seems that I can now start working with my satellite data
> in R - thanks for this speedup!
>
> best wishes,
> Markus
>
>
> guano wrote:
>   
>> It took about 6 seconds to read a raster with 2200x2500 cells, and
>> about 3 secs to build a truehist().
>>
>> don't have any categorical map, though.
>>
>> Carlos
>>
>>     
>
>   


-- 
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:	thomas.adams at noaa.gov

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