On Wed, 27 Feb 2008, Rainer M Krug wrote: > Hi > > Sorry for crossposting, but I think this can be of interest for GRASS and R > users.
Yes, please avoid cross-posting - the discussion ends up on many different lists and threading can break down if the threading implementation in mail clients and archives doesn't like cross-posting. The only complete thread I have found is on Nabble at: http://www.nabble.com/Plan-to-build-Package-to-use-GRASS-from-R-tt15712877.html#a15712877 for the grass-dev list. In summary, the problems are mostly those of appropriately quoting shell commands through system() across platforms. Those interested should follow the discussion on grass-dev. The correct lists could be either here, or the grass-stats list; could Rainer post a summary to both (hopefully in-thread) on conclusion? Roger > > I am planning to write a package to make the use of GRASS from R easier. The > idea is to wrap the system call to execute the GRASS command into an R > command of the same name. > e.g: > r.to.vect <- function(..., intern=TRUE, ignore.stderr=FALSE) > { > comm <- paste( "r.to.vect ", ..., sep="" ) > print(comm) > system( comm, intern=intern, ignore.stderr=ignore.stderr ) > } > > My questions are: > > 1) Is this a good way of doing it, or is giving a named list to the function > more usefull? > 2) Is there a way to obtain easily all commands from GRASS and the > parameters possible and required? > > Any ideas and comments welcome, > > Rainer > > > -- Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business Administration, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: [EMAIL PROTECTED] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
