[STATSGRASS] R, GRASS, and CYGWIN under version GRASS54

[Redding, Matthew]

Hi Roger,

I agree, that was just an oversight.

The weird thing is, cygwin seems to habitually install so that my home directory is
the n:/ drive.  So while that is not where the data is, it is where the .grassrc54 is.

But it does not seem to matter what I put in the cygwin string....your version works fine...
What does it actually do?  Does the grass.connect(...) command over-ride it anyway?

This is the sequence I used to get things going:

> library(GRASS)
Warning message: 
package 'GRASS' was built under R version 2.0.1 
> set.cygwinstring("c:/cygwin")
[1] "c:/cygwin"
> GRASS.connect(manual=TRUE, gisdbase="c:/cygwin/usr/local/share/grassdata"
+ , loc="Jack", mapset="PERMANENT")
GRASS environment variables inserted manually
NULL
> G<-gmeta()
> G
$LOCATION
[1] "Jack"
....

NOTE: I am NOT using R from within grass.  I am using R and accessing grass.  I am far more familliar wtih R than I am with grass,
so that is just the way I ended up doing it.  In fact, I am not at all sure about how to run my normal R installation
from with GRASS -- suggestions welcome.


I used the system intensively yesterday with "set.cygwinstring("n:/")" 
and found everything that I used worked well.  I used gmeta, sites.get, sites.put, and the equivalent raster commands.

It all worked very well!

Now, if I can run my windows R installation from within GRASS , I would like to learn that!

Thanks, 

Matt Redding

-----Original Message-----
From: Roger Bivand [mailto:Roger.Bivand at nhh.no]
Sent: Thursday, 10 March 2005 5:41 PM
To: Redding, Matthew
Cc: statsgrass at grass.itc.it
Subject: RE: [STATSGRASS] R, GRASS, and CYGWIN under version GRASS54


First - please always reply to the list on which you asked the question!!

If you do not, no-body else will share what you have learnt, nor will they 
be able to join in. It also makes the list archives useless, because they 
only contain open questions, not confirmations of resolution.

On Thu, 10 Mar 2005, Redding, Matthew wrote:

> Thanks Roger and Hamish, 
> 
> I think I am getting close to the real problem here.
> When I start grass, I end up on my network drive n:...
> and that is where the .grassrc54 is.
> 
> My grassdata directory is:
> 
> c:/cygwin/usr/local/share/grassdata.
> 
> so I did this:
> 
> set.cygwinstring("n:/")

I'm doubtful about this - from the above, the cygwin root is:

c:/cygwin

isn't it?

Please as far as possible copy the full console interaction - both your 
commands, and what the system responds. Please remember that the list is 
not looking over your shoulder.

> 
> I am not sure where the GISDBASE is.....
> would it be in 
> c:/cygwin/usr/local/share/grassdata ?
> 
> I suppose if that is the case, I need to then use something like:
> 
> GRASS.connect(manual=TRUE, gisdbase="c:/cygwin/usr/local/share/grasdata"
> 	, loc="Jack", mapset="PERMANENT")
> 

Well, what happened when you tried it? Please say more about what happens? 
What happens when you start GRASS - you are running R within GRASS, aren't 
you?



> 
> Is that correct? Is that enought to get things fully operational?
> 
> I can now access data from the mapset listed.  So I have had derinate
> progress.

That sounds positive. Please post a recipe of the steps you need, 
preferably copy and paste from your console, than others can benefit from 
your learning too!

Best wishes,

Roger

> 
> Thanks very much.
> 
> Thanks, 
> 
> Matt Redding
> 
> -----Original Message-----
> From: statsgrass-admin at grass.itc.it
> [mailto:statsgrass-admin at grass.itc.it]On Behalf Of Roger Bivand
> Sent: Wednesday, 9 March 2005 5:28 PM
> To: Redding, Matthew
> Cc: statsgrass at grass.itc.it
> Subject: Re: [STATSGRASS] R, GRASS, and CYGWIN under version GRASS54
> 
> 
> On Wed, 9 Mar 2005, Redding, Matthew wrote:
> 
> > Hi GRASS and R Gurus, 
> > 
> > I sent an email on this subject prior to confirming my subscription to the group, so I hope no-one recieves this message twice.
> > 
> > I have had a look through the archive to see if GRASS54 will work under cygwin with R2.0.
> > I notice that some people are using GRASS 54 with R, but the most recent mention of 
> > using it with cygwin was back in 2002, and all the advice I have been able to find does not seem to work.
> > 
> > Will it actually work with my setup of R 2, GRASS 54 and cygwin?
> > 
> > Where should I look for info on how to get it all running?
> > 
> > The help material in R indicates a few suggestions, that do not seem to
> > work for me.
> > 
> > For example, one of my problems is that I cannot find any file called
> > .grassrc5 or anything much like it, as mentioned in the ?grass.connect()
> > documentation under R.
> 
> Please try the following (based on the guess that the advice should have
> said look for .grassrc5* - in 5.4 it is probably .grassrc54). From the 
> cygwin terminal prompt, start GRASS in text mode. Once you've chosen your
> location and mapset, you get to the GRASS prompt. Try again to find your
> .grassrc5* in your home directory (cat ~/.grassrc5*). If it is there, 
> start R (either GUI or terminal), and library(GRASS), then 
> set.cygwinstring(), or other routes to getting the cygwin prefix right.
> 
> I think your difficulty has been looking for .grassrc5 not .grassrc5* - 
> please let the list know if this helps. The general setup should work, 
> from reports from other users, you just need to get the specific naming 
> magic right for the cygwin prefix for the GISDBASE, I hope.
> 
> Roger
> 
> > 
> > 
> > Any suggestions on how to get it working?
> > 
> > Thanks, 
> > 
> > Matt Redding 
> > 
> > ********************************DISCLAIMER****************************
> > The information contained in the above e-mail message or messages 
> > (which includes any attachments) is confidential and may be legally 
> > privileged.  It is intended only for the use of the person or entity 
> > to which it is addressed.  If you are not the addressee any form of 
> > disclosure, copying, modification, distribution or any action taken 
> > or omitted in reliance on the information is unauthorised.  Opinions 
> > contained in the message(s) do not necessarily reflect the opinions 
> > of the Queensland Government and its authorities.  If you received 
> > this communication in error, please notify the sender immediately and 
> > delete it from your computer system network. 
> > 
> > _______________________________________________
> > statsgrass mailing list
> > statsgrass at grass.itc.it
> > http://grass.itc.it/mailman/listinfo/statsgrass
> > 
> 
> 

-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Breiviksveien 40, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
e-mail: Roger.Bivand at nhh.no