Thanks Hadley: I had already gone to your website and stat="identity" is what I needed.
--- On Fri, 12/26/08, hadley wickham <h.wick...@gmail.com> wrote: > From: hadley wickham <h.wick...@gmail.com> > Subject: Re: [R] ggplot2 Xlim > To: mazatlanmex...@yahoo.com > Cc: r-help@r-project.org, "Wayne F" <wd...@mac.com> > Date: Friday, December 26, 2008, 3:31 PM > Hi Felipe, > > It sounds like ForkLength is a factor - what deos str(FL) > tell you? > You might also need geom_bar(..., stat = > "identity") since your data > are pretabulated. > > Hadley > > On Fri, Dec 26, 2008 at 2:44 PM, Felipe Carrillo > <mazatlanmex...@yahoo.com> wrote: > > Wayne: > > What's crowded are my x axis labels. The bars look > fine on my graph but the labels are being displayed from 29 > to 170 one by one. I need something like a seq(29,170 by:10) > or something like that. I don't want to treat my FL as > factor because I don't want a bar per each FL value, I > only want to count the number of FL at any given FL size. > Thanks > > > > > > --- On Thu, 12/25/08, Wayne F <wd...@mac.com> > wrote: > > > >> From: Wayne F <wd...@mac.com> > >> Subject: Re: [R] ggplot2 Xlim > >> To: r-help@r-project.org > >> Date: Thursday, December 25, 2008, 2:43 PM > >> I'm just a ggplot2 beginner, but... > >> > >> It seems to me that you're mixing continuous > and factor > >> variables/concepts. > >> It looks to me as if ForkLength and Number are > continuous > >> values. But you'll > >> need to convert ForkLength into a factor before > using > >> geom="bar". I do that > >> and the graph "works" but the bars are > extremely > >> busy, which I assume is > >> what you mean by "crowded". > >> > >> As I try several different things, I'm seeing > error > >> messages. Are you not > >> seeing error messages? > >> > >> Is the bottom line that you simply want to display > some > >> continuous data in a > >> histogram-ish style, and you don't like the > default > >> "binning" of Number for > >> each of many ForkLengths? > >> > >> If you simply use geom="line", things > look clear > >> and simple, no need to bin > >> or simplify or... > >> > >> If you do end up using geom="bar", I > believe the > >> mistake you're making -- > >> and I see an error message when I try -- is that > you are > >> using > >> scale_x_continuous whereas the X axis is discrete, > so you > >> should be using > >> scale_x_discrete. But then it will take some R > magic to > >> combine your "bins" > >> into wider bins so you get a "less > crowded" look. > >> > >> Or perhaps I'm misunderstanding? > >> > >> Wayne > >> > >> > >> Felipe Carrillo wrote: > >> > > >> > Hi: I need some help. > >> > I am ploting a bar graph but I can't > adjust my x > >> axis scale > >> > I use this code: > >> > i <- > >> > qplot(ForkLength,Number,data=FL,geom="bar") > >> > i + > >> > geom_bar(colour="blue",fill="grey65") # > >> too crowded > >> > > >> > FL_dat <- > >> ggplot(FL,aes(x=ForkLength,y=Number)) + > >> > > >> > geom_bar(colour="green",fill="grey65") > >> > FL_dat + > scale_x_continuous(limits=c(20,170)) # > >> Can't see anything > >> > > >> > FL Number > >> > 29 22.9 > >> > 30 63.4 > >> > 31 199.3 > >> > 32 629.6 > >> > 33 2250.1 > >> > ... > >> > > >> > >> -- > >> View this message in context: > >> > http://www.nabble.com/ggplot2-Xlim-tp21161660p21170453.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. > > > > ______________________________________________ > > 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. > > > > > > -- > http://had.co.nz/ ______________________________________________ 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.