>I am using standalone winGRASS, but installed it with OSGeo4W because I also >use QGIS.
I don't understand this. How do you install standalone winGRASS with OSGeo4W? But that's another question. Jürgen re-packaged now winGRASS 8.3.0 in OSGeo4W version 2 including the Rbatch-files. have a look at https://github.com/ggrothendieck/batchfiles/blob/master/R.bat#L520 and following code lines. the relevant one is https://github.com/ggrothendieck/batchfiles/blob/master/R.bat#L532 "echo path - Add R_TOOLS, R_MIKTEX ^& R_PATH to path for this cmd line session (0)" just tried here in OSGeo4W version 2 with re-packaged winGRASS 8.3.0: * starting a GRASS session * typing into the windows console: R path => this adds temporarily the path to R to %PATH% * typing into the windows console: RScript -e "sessionInfo()" => outputs all necessary infos if R is correctly found (as Micha suggested) when temporarily the path to R is added to %PATH% within the winGRASS session, try v.class.mlR. Kind regards Helmut _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user