Message----- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of David Winsemius > Sent: Tuesday, November 24, 2009 12:22 PM > To: yonosoyelmejor > Cc: r-help@r-project.org > Subject: Re: [R] Method > > > On Nov 24, 2009, at 1:44 PM, yonosoyelmejor wrote: > > > > > I use length(myVector),but when i want to use for example > > exp(x.reconstruida[length(myVector)+1:length(myVector)+9]), I need
This may have nothing to do with your original problem, but I suspect that expression should be exp(x.reconstruida[(length(myVector)+1):(length(myVector)+9)]) or, equivalently, exp(x.reconstruida[length(myVector)+(1:9)]) (where the parentheses around 1:9 are not required but often helpful for understanding). Compare > 5+1:5+10 [1] 16 17 18 19 20 > (5+1):(5+10) [1] 6 7 8 9 10 11 12 13 14 15 Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > > that > > function returns the number of last element,would then: > > > > if the last position of my vector is 1440 > > > > exp(x.reconstruida[1440+1:1440+9] Again, (1440+1):(1440+9) or 1440+(1:9). > > So that should give you (assuming that you close the expression) a > vector of values, "e" raised to a vector from elements 1441 to 1449, > if such elements have already been defined and are numeric. > > > > This is what I need, I hope having explained, > > I do not think you have explained well enough. What is > "x.reconstruida"? Does it have a longer length than myVector? > > Things would be much clearer if you made a small example (not 1440 > elements long, maybe 10?). > > -- > David > > > > A gretting, > > Ignacio. > > > > Johannes Graumann-2 wrote: > >> > >> myVector <- c(seq(10),23,35) > >> length(myVector) > >> myVector[length(myVector)] > >> > >> it's unclear to me which of the two you want ... > >> > >> HTH, Joh > >> > >> yonosoyelmejor wrote: > >> > >>> > >>> Hello, i would like to ask you another question. Is exist > >>> anymethod to > >>> vectors that tells me the last element?That is to say,I have a > >>> vector, I > >>> want to return the position of last element. I hope having > >>> explained. > >>> > >>> A greeting, > >>> Ignacio. > >> > >> ______________________________________________ > >> 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. > >> > >> > > > > -- > > View this message in context: > http://old.nabble.com/Method-tp26493442p26499919.html > > Sent from the R help mailing list archive at Nabble.com. > > > > ______________________________________________ > > 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. > > David Winsemius, MD > Heritage Laboratories > West Hartford, CT > > ______________________________________________ > 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. > ______________________________________________ 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.