[GRASS-user] v.rast.stats locks up on wingrass (problem adding columns)

Helmut Kudrnovsky hellik at web.de
Fri Aug 19 11:58:27 EDT 2011


there seems to be 2 issues here

>C:/GRASS-64-SVN/scripts/v.rast.stats: line 268: v.db.addcol: command not
>ERROR: Cannot continue (problem adding columns). 

tested with WinGRASS-6.4.SVN-r47756-1-Setup.exe

   v.db.addcol map=mygeology at test columns=helli                                    
   DBMI-DBF driver error:
   ERROR: Fehler beim Ausführen von: 'ALTER TABLE mygeology ADD COLUMN helli
  ERROR: Cannot continue (problem adding column).

so v.db.addcol seems to still have problems with dbf-driver in windows

>execGRASS("v.rast.stats", flags="verbose",
parameters=list(raster="eosd_resample", vector="mcp80s", >colprefix="p80"))
>Error in system(cmd0, intern = TRUE) : 'v.rast.stats.exe' not found <=
>Error in parseGRASS(cmd) : v.rast.stats not found

I've no experience in using grass within a R session, but there is a wrapper

C:\Program Files\GRASS 6.4.SVN\bin\v.rast.stats.bat

and execGRASS() seems to wait for an v.rast.stats.exe which doesn't exist.

best regards

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