R and GRASS-windows (readRAST6 problem, installation)

[Martin Maier-2]

Hello at all

I use R to do statistics of some GRASS data. On the windows machines (XP
and W2K) there occurred a problem when using the readRAST6 command form
the spgrass6 library. I think the problem is linked to the standard
installation of the GRASS standalone installer.

The standalone installer creates a folder named "GIS DataBase" under "My
Documents". To test where the problem is, I moved the folder "GIS
DataBase" to D:\

Now I started R from within the new GRASS wxpython GUI. Within R I
loaded spgrass6 ("library(spgrass6)"). Then the command readRAST6 fails.
After renaming "GIS DateBase" to "GISDataBase" (and of course new start
of GRASS and R) everything with the readRAST6 command works fine.

So my guess is, that the readRAST6 command can not handle the blanks in
the paths and on the other hand the installation of GRASS under windows
with the standalone installer creates a default GIS database with a
blank in the folder name. So probably it would be a good idea to change
"GIS DataBase" to "GISDataBase". But then there is still the blank in
"My Documents"!

Can anyone confirm this, and should I file a bug report?

Martin
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[Roger Bivand]

For questions of this kind, please use the statgrass list.

When you repeat your question on that list, please include sessionInfo() with all information including your locale, and full GRASS details, that is what GRASS version, how installed (there are many different variants, which version of the standalone installer), how used (Rterm.exe, Rgui.exe, ...), from which terminal R was started, and verbatim output of gmeta6().

Using spaces in path variables is never a good idea anyway, but it might be possible to add an extra layer of protection. Without knowing your exact system specifications will however make your report difficult to reproduce.

Roger

Martin Maier-2 wrote:

Hello at all

I use R to do statistics of some GRASS data. On the windows machines (XP
and W2K) there occurred a problem when using the readRAST6 command form
the spgrass6 library. I think the problem is linked to the standard
installation of the GRASS standalone installer.

The standalone installer creates a folder named "GIS DataBase" under "My
Documents". To test where the problem is, I moved the folder "GIS
DataBase" to D:\

Now I started R from within the new GRASS wxpython GUI. Within R I
loaded spgrass6 ("library(spgrass6)"). Then the command readRAST6 fails.
After renaming "GIS DateBase" to "GISDataBase" (and of course new start
of GRASS and R) everything with the readRAST6 command works fine.

So my guess is, that the readRAST6 command can not handle the blanks in
the paths and on the other hand the installation of GRASS under windows
with the standalone installer creates a default GIS database with a
blank in the folder name. So probably it would be a good idea to change
"GIS DataBase" to "GISDataBase". But then there is still the blank in
"My Documents"!

Can anyone confirm this, and should I file a bug report?

Martin
_______________________________________________
grass-user mailing list
[e-mail]
http://lists.osgeo.org/mailman/listinfo/grass-user

[Roger Bivand]

Please also give your verbatim command and full output including the output of traceback() issued after the error, as readRAST6() may use the GRASS GDAL plugin if available, a temporary file with r.out.gdal and readGDAL(), or r.out.bin and a custom function to read binary raster files. Also do this for GISDBASE and location variants that do work.

Roger Bivand wrote:

For questions of this kind, please use the statgrass list.

When you repeat your question on that list, please include sessionInfo() with all information including your locale, and full GRASS details, that is what GRASS version, how installed (there are many different variants, which version of the standalone installer), how used (Rterm.exe, Rgui.exe, ...), from which terminal R was started, and verbatim output of gmeta6().

Using spaces in path variables is never a good idea anyway, but it might be possible to add an extra layer of protection. Without knowing your exact system specifications will however make your report difficult to reproduce.

Roger

Martin Maier-2 wrote:

Hello at all

I use R to do statistics of some GRASS data. On the windows machines (XP
and W2K) there occurred a problem when using the readRAST6 command form
the spgrass6 library. I think the problem is linked to the standard
installation of the GRASS standalone installer.

The standalone installer creates a folder named "GIS DataBase" under "My
Documents". To test where the problem is, I moved the folder "GIS
DataBase" to D:\

Now I started R from within the new GRASS wxpython GUI. Within R I
loaded spgrass6 ("library(spgrass6)"). Then the command readRAST6 fails.
After renaming "GIS DateBase" to "GISDataBase" (and of course new start
of GRASS and R) everything with the readRAST6 command works fine.

So my guess is, that the readRAST6 command can not handle the blanks in
the paths and on the other hand the installation of GRASS under windows
with the standalone installer creates a default GIS database with a
blank in the folder name. So probably it would be a good idea to change
"GIS DataBase" to "GISDataBase". But then there is still the blank in
"My Documents"!

Can anyone confirm this, and should I file a bug report?

Martin
_______________________________________________
grass-user mailing list
[e-mail]
http://lists.osgeo.org/mailman/listinfo/grass-user