Hi Didn't you by chance use plain cut and k2 was NA?
> cut(1:300, NA) Error in cut.default(1:300, NA) : invalid number of intervals Cheers Petr > -----Original Message----- > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Janka > Vanschoenwinkel > Sent: Friday, August 14, 2015 10:16 AM > To: Michael Dewey > Cc: r-help@r-project.org > Subject: Re: [R] cut variable within a loop > > Hey Michael, > > Sorry for the late reply! > > Thanks for your comment, but for the cut2 command, this is not the > case. If I enter for instance > > Alldata$irri=cut2(irrigation,3) > > Then I get 2 intervals from 0-3 and from 3-100. > > Janka > > 2015-08-11 17:25 GMT+02:00 Michael Dewey <li...@dewey.myzen.co.uk>: > > > Dear Janka > > If you supply a single number to the breaks parameter of cut I think > > it is the number of intervals. > > > > > > On 11/08/2015 13:57, Janka Vanschoenwinkel wrote: > > > >> Hi Thierry! > >> > >> Thanks for your answer. I tried this, but I get this error: > >> > >> "Error in cut.default(x, k2) : invalid number of intervals" > >> > >> Which is strange because I am not specifying intervals, but the > >> number at where the sample has to be cut? > >> > >> Greetings from Belgium! :-) > >> > >> 2015-08-11 14:52 GMT+02:00 Thierry Onkelinx > <thierry.onkel...@inbo.be>: > >> > >> Dear Janka, > >>> > >>> You loop goes for 0 to 100. It should probably go from 1:99 > >>> > >>> Best regards, > >>> > >>> ir. Thierry Onkelinx > >>> Instituut voor natuur- en bosonderzoek / Research Institute for > >>> Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics > >>> & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium > >>> > >>> To call in the statistician after the experiment is done may be no > >>> more than asking him to perform a post-mortem examination: he may > be > >>> able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher > >>> The plural of anecdote is not data. ~ Roger Brinner The combination > >>> of some data and an aching desire for an answer does not ensure > that > >>> a reasonable answer can be extracted from a given body of data. > >>> ~ John Tukey > >>> > >>> 2015-08-11 14:38 GMT+02:00 Janka Vanschoenwinkel < > >>> janka.vanschoenwin...@uhasselt.be>: > >>> > >>> Dear list members, > >>>> > >>>> I have a loop where I want to do several calculations for > different > >>>> samples and save the results for each sample. These samples are > for > >>>> each loop different. I want to use the "i" in the loop to cut the > >>>> samples. > >>>> > >>>> So for instance: > >>>> > >>>> - In loop 1 (i=1), I have a sample from 0-1 and a sample from > 1-100. > >>>> - In loop 2 (i=2), I have a sample from 0-2 and a sample from > 2-100. > >>>> - In loop 99 (i=99), I have a sample from 0-99 and a sample > >>>> from 99-100. > >>>> > >>>> I built the following function, but there is *a problem with the > >>>> cut2 > >>>> function* since it doesn't recognize the "i". Outside the lapply > >>>> loop it works, but not inside the loop. > >>>> > >>>> Could somebody please help me with this problem? Thanks a lot! > >>>> > >>>> > >>>> > >>>> > >>>> > d=data.frame(MEt_Rainfed=rep(0,100),MEp_Rainfed=rep(0,100),MEt_Irri > >>>> gation=rep(0,100),MEp_Irrigation=rep(0,100)) > >>>> > >>>> > >>>> > >>>> o<-lapply(0:100, function(i){ > >>>> > >>>> > >>>> > >>>> Alldata$irri=cut2(Alldata$irrigation,i) > >>>> > >>>> levels(Alldata$irri)<-c("0","1") > >>>> > >>>> > >>>> > >>>> Alldata_Rainfed<-subset(Alldata, irri == 0) > >>>> > >>>> Alldata_Irrigation<-subset(Alldata, irri == 1) > >>>> > >>>> > >>>> > >>>> #calculations per sample, then store all the values per i and > >>>> per variable in a dataframe: (the calculations are not shown in > >>>> this > >>>> example) > >>>> > >>>> > >>>> > >>>> d[i, ] = > >>>> c(MEt_Rainfed,MEp_Rainfed,MEt_Irrigation,MEp_Irrigation) > >>>> > >>>> > >>>> > >>>> }) > >>>> > >>>> > >>>> > >>>> out<-as.data.frame(do.call(rbind, o)) > >>>> > >>>> > >>>> -- > >>>> P Please consider the environment before printing this e-mail > >>>> > >>>> [[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. > >>>> > >>>> > >>> > >>> > >> > >> > > -- > > Michael > > http://www.dewey.myzen.co.uk/home.html > > > > > > -- > > [image: Logo UHasselt]Mevrouw Janka Vanschoenwinkel *Doctoraatsbursaal > - PhD * Milieueconomie - Environmental economics > > T +32(0)11 26 87 42 | GSM +32(0)476 28 21 40 > > www.uhasselt.be/eec > > Universiteit Hasselt | Campus Diepenbeek Agoralaan Gebouw D | B-3590 > Diepenbeek Kantoor F11 > > Postadres: Universiteit Hasselt | Martelarenlaan 42 | B-3500 Hasselt > > P Please consider the environment before printing this e-mail > > [[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. ________________________________ Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou určeny pouze jeho adresátům. 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