Thank you very much for your help !
I 'm trying to use the package "rPithon" but I obtain this error message: > 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.