> On Nov 16, 2016, at 4:53 PM, Nelly Reduan <nell.r...@hotmail.fr> wrote: > > Thank you very much for your help ! > > > I 'm trying to use the package "rPithon" but I obtain this error message:
Are you sure you are not just misspelling rPython? If that's not the issue than you need to say where you got rPithon, > > >> if (pithon.available()) > > + { > > + nRow <-50 > > + nCol <-50 > > + h <- 0.75 > > + > > + # this file contains the definition of function concat > > + pithon.load("C:/Users/Anaconda2/Lib/site-packages/nlmpy/nlmpy.py") > > + pithon.call( "mpd", nRow, nCol, h) > > + > > + } else { > > + print("Unable to execute python") > > + } > > Show Traceback > > > > Rerun with Debug > > > > Error in pithon.get("_r_call_return", instance.name = instname) : > > Couldn't retrieve variable: Traceback (most recent call last): > > File "C:/Users/Documents/R/win-library/3.3/rPithon/pythonwrapperscript.py", > line 110, in <module> > > reallyReallyLongAndUnnecessaryPrefix.data = > json.dumps([eval(reallyReallyLongAndUnnecessaryPrefix.argData)]) > > File "C:\Users\ANACON~1\lib\json\__init__.py", line 244, in dumps > > return _default_encoder.encode(obj) > > File "C:\Users\ANACON~1\lib\json\encoder.py", line 207, in encode > > chunks = self.iterencode(o, _one_shot=True) > > File "C:\Users\ANACON~1\lib\json\encoder.py", line 270, in iterencode > > return _iterencode(o, 0) > > File "C:\Users\ANACON~1\lib\json\encoder.py", line 184, in default > > raise TypeError(repr(o) + " is not JSON serializable") > > TypeError: array([[ 0.36534654, 0.31962481, 0.44229946, ..., 0.11513079, > > 0.07156331, 0.00286971], > > [ 0.41534291, 0.41333479, 0.48118995, ..., 0.19203674, > > 0.04192771, 0.03679473], > > [ 0.5188 > > > > > > Nell > > > ________________________________ > De : Wensui Liu <liuwen...@gmail.com> > Envoy� : mercredi 16 novembre 2016 16:00:03 > � : Nelly Reduan > Cc : r-help@r-project.org > Objet : Re: [R] Run a Python code from R > > take a look at rpython or rPithon package > > On Wed, Nov 16, 2016 at 4:53 PM, Nelly Reduan <nell.r...@hotmail.fr> wrote: >> Hello, >> >> >> How can I run this Python code from R ? >> >> >>>>> import nlmpy >>>>> nlm = nlmpy.mpd(nRow=50, nCol=50, h=0.75) >>>>> nlmpy.exportASCIIGrid("raster.asc", nlm) >> >> >> Nlmpy is a Python package to build neutral landscape models >> >> https://pypi.python.org/pypi/nlmpy . The example comes from this website. I >> tried to use the function system2 but I don't know how to use it. >> >> >> path_script_python <- "C:/Users/Anaconda2/Lib/site-packages/nlmpy/nlmpy.py" >> >> test <- system2("python", args = c(path_script_python, as.character(nRow), >> as.character(nCol), as.character(h))) >> >> Thanks a lot for your help. >> Nell >> >> >> nlmpy 0.1.3 : Python Package Index<https://pypi.python.org/pypi/nlmpy> >> pypi.python.org >> NLMpy. NLMpy is a Python package for the creation of neutral landscape >> models that are widely used in the modelling of ecological patterns and >> processes across ... >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.