Dear John, What I am trying to do is a genetic analysis and the "i" in my cycle are the numbers of markers I am testing. I know the code is not right, but what i wanted to do was to fill this 6 row matrix with the numbers in x So basically I wanted the cycle to loop only with the values on x (50,100,200,300,900,2343) and not the the rest of the values Do you know how to do it?
In the example I wanted my final test matrix to be [50 100 200 300 900 2343] dim(test) <- still 6x1 Thanks for the help jholtman wrote: > > It is unclear exactly what you are trying to do. Since your 'test' > matrix is only 6 rows in length, then when you extend it by trying to > store into 50 for example, it will fill in the rest of the new values > with NA. Can you explain what you think the code is supposed to do? > It is doing exactly what you are asking it to do with the script you > provided. > > On Sun, Sep 27, 2009 at 10:09 AM, Marcio Resende > <mresende...@yahoo.com.br> wrote: >> >> Hi Tobias, thanks for the help, >> the code I am using is quite long, but basically what I tried to do was >> >> test <- matrix(0,6,1) >> x <- matrix( c(50,100,200,300,900,2343) ,ncol = 1) >> for (i in x){ >> test [i] <- (i) >> } >> >> but this code returns NA for all the elements which are not x >> >> >> >> >> Tobias Verbeke-2 wrote: >>> >>>> Hi nice people, >>> >>> :-) >>> >>>> I would like to do a for cycle but i wish it to assume only the numers >>>> 50, >>>> 100, 200, 300, 900 and 2343 >>>> I tried to do something like >>>> >>>> x <- c(50,100,200,300,900,2343) >>>> for (i in x){ >>>> #..... >>>> } >>>> >>>> But it didn´t work >>> >>> If you would use a reproducible code example we >>> could point out where the error comes from; >>> otherwise we can only tell this should work; >>> try >>> >>> x <- c(50,100,200,300,900,2343) >>> for (i in x){ >>> cat(i^2, "\n") >>> } >>> # 2500 >>> # 10000 >>> # 40000 >>> # 90000 >>> # 810000 >>> # 5489649 >>> >>> HTH, >>> Tobias >>> >>> ______________________________________________ >>> 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://www.nabble.com/for-cycle-with-uncontinuous-numbers-tp25630831p25633906.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. >> > > > > -- > Jim Holtman > Cincinnati, OH > +1 513 646 9390 > > What is the problem that you are trying to solve? > > ______________________________________________ > 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://www.nabble.com/for-cycle-with-uncontinuous-numbers-tp25630831p25634676.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.