[GRASS-user] v.class.mlR Error

[Moritz Lennert]

On 01/06/18 00:41, Helmut Kudrnovsky wrote:
>> But it's not about the tempfile, it's about calling Rscript and >Windows not
> being able to find it, or ?
> 
> looking closer at the report and the used command, the Rscript and other
> files should be written to files in some folder, right?

Rscript is an executable which allows to call R commands 
non-interactively in a scripting environment.

However, I noticed that the file with the R commands was the only one I 
hadn't done the replace("\\", "/") on, so maybe the error about not 
being able to find the file is about the command file, not Rscript.

> 
>   >Some paths to set correctly maybe ?
> 
> What I've seen today during quick tests, it may be the path can't be
> resolved, it may be a similar issue with path like for the temp File.
> 
> But in my first quuck test, the Rscript was written to a folder when
> specified.
> 
> I suggest to apply a patch in svn to solve the temp file issue, then further
> testing is needed.

I committed a patch in r72758 which now correctly applies the replace() 
call to all tempfiles created. Please test.

If you still see an error that combines

pts/v.class.mlR.py", line 570, in main
     subprocess.check_call(['Rscript', r_commands],
stderr=subprocess.STDOUT, )

and

WindowsError: [Error 2] The system cannot find the file
specified

Then maybe it is about Rscript not being in the PATH...

Jamille, could you please also test ? It should be available for Windows 
for installation with g.extension by tomorrow.

Moritz