Hi: if you mean that you want the labels to be the strings "-1.55", "-1.50" etc then you can use the names.arg argument for that. You can create a vector of character strings
binstrings = c("-1.55","-1.50", .... ) or just convert your data to strings using as.character. Then, in the call to barplot, include names.arg = binstrings. I think that should work. On Mon, Jan 21, 2013 at 8:16 PM, hp wan <huaping....@gmail.com> wrote: > But the x-axis of barplot is still not what I want. The xlab is breaks, > not -1.55,-1.50,....,0.55. > > > 2013/1/22 Mark Leeds <marklee...@gmail.com> > >> Hi Hp: I'm not sure what you want. Below looks slightly better but if you >> want the x-axis >> to have better labels, then there is a names.arg argument to barplot. see >> ?barplot. >> >> I don't know what each of the bins represents but if you want to include >> all of those zeros then I don't think there's any way of getting around the >> fact that there is so much space in the barplot. Maybe someone else has a >> suggestion. >> >> >> breaks=c(-1.55,-1.50,-1.45,-1.40,-1.35,-1.30,-1.25,-1.20,-1.15,-1.10,-1.05,-1.00,-0.95,-0.90,-0.85,-0.80,-0.75,-0.70, >> >> -0.65,-0.60,-0.55,-0.50,-0.45,-0.40,-0.35,-0.30,-0.25-0.20,-0.15,-0.10,-0.05,0.00,0.05,0.10,0.15,0.20,0.25,0.30,0.35,0.40, >> 0.45,0.50,0.55) >> >> >> counts=c(287,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,212,2624,2918,0,0,0,75,36317,4963,0,0,2462,0,0,0,0,0,142) >> >> percentage=counts/sum(counts) >> barplot(percentage,xlab="breaks",xlim=c(1,42)) >> >> >> >> On Mon, Jan 21, 2013 at 7:47 PM, hp wan <huaping....@gmail.com> wrote: >> >>> Ok, that is no problem. >>> >>> >>> 2013/1/22 Mark Leeds <marklee...@gmail.com> >>> >>>> let me look at but it's probably best to send to the whole list because >>>> there are many >>>> people on it way more knowledgable than myself. I'm ccing the list and >>>> hope you >>>> don't mind. my fault for replying privately initially. >>>> >>>> >>>> >>>> On Mon, Jan 21, 2013 at 7:36 PM, hp wan <huaping....@gmail.com> wrote: >>>> >>>>> Thanks for your reply! >>>>> >>>>> >>>>> breaks=c(-1.55,-1.50,-1.45,-1.40,-1.35,-1.30,-1.25,-1.20,-1.15,-1.10,-1.05,-1.00,-0.95,-0.90,-0.85,-0.80,-0.75,-0.70,-0.65,-0.60,-0.55,-0.50,-0.45,-0.40,-0.35,-0.30,-0.25-0.20,-0.15,-0.10,-0.05,0.00,0.05,0.10,0.15,0.20,0.25,0.30,0.35,0.40,0.45,0.50,0.55) >>>>> >>>>> counts=c(287,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,212,2624,2918,0,0,0,75,36317,4963,0,0,2462,0,0,0,0,0,142) >>>>> percentage=counts/sum(counts) >>>>> barplot(percentage,xlab=breaks) >>>>> >>>>> The horizontal value (that is xlabe) looks very ugly. I hope it looks >>>>> like the xlab of hist, that is x axis correspond to breaks. >>>>> >>>>> After ?barplot, I also have no idea to implement it. >>>>> >>>>> 2013/1/22 Mark Leeds <marklee...@gmail.com> >>>>> >>>>>> I'm not sure that I understand but can't you just take the data and >>>>>> divide it by the sum of the data and plot that ? >>>>>> >>>>>> >>>>>> >>>>>> On Mon, Jan 21, 2013 at 6:36 PM, hp wan <huaping....@gmail.com>wrote: >>>>>> >>>>>>> Thanks for your reply. >>>>>>> >>>>>>> If I set the probability = FALSE, the column values are >>>>>>> corresponding to the refrequency (the numbers of values falling in >>>>>>> intervals). I want the coulumn values are percentage, that is >>>>>>> x$counts/sum(x$counts). >>>>>>> >>>>>>> >>>>>>> 2013/1/22 Mark Leeds <marklee...@gmail.com> >>>>>>> >>>>>>>> Hi: the density integrates to 1 but the actual height of the >>>>>>>> density at each point is not less necessarily than 1. for what you >>>>>>>> want, >>>>>>>> you should be using probability = FALSE. >>>>>>>> >>>>>>>> you can do pnorm(x=0,0,1) to see this. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Mon, Jan 21, 2013 at 5:18 PM, hp wan <huaping....@gmail.com>wrote: >>>>>>>> >>>>>>>>> Hi All, >>>>>>>>> >>>>>>>>> When carrying out hist(samples,breaks=50,probability=TRUE), the >>>>>>>>> column >>>>>>>>> values are considerably greater than 1, which seams very >>>>>>>>> unreasonable. The >>>>>>>>> plot is attached. >>>>>>>>> >>>>>>>>> I think the column value of the hist plot should correspond to >>>>>>>>> x$counts/sum(x$counts) >>>>>>>>> (x=hist(samples,breaks=50,probability=TRUE)). The size of data >>>>>>>>> is a >>>>>>>>> little bit larger, causing failure of uploading. If you need the >>>>>>>>> data, I >>>>>>>>> can email it to you. >>>>>>>>> >>>>>>>>> Can anyone help me? >>>>>>>>> >>>>>>>>> Thanks! >>>>>>>>> >>>>>>>>> Best regares, >>>>>>>>> >>>>>>>>> Huaping Wan >>>>>>>>> >>>>>>>>> ______________________________________________ >>>>>>>>> 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<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 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.