[R] "Raw" histogram plots

Peter Alspach PAlspach at hortresearch.co.nz
Wed Feb 27 02:15:48 CET 2008


Andre

If I understand you correctly, you could try a barplot() on the result
of table().

HTH ......

Peter Alspach
 

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Andre Nathan
> Sent: Wednesday, 27 February 2008 1:34 p.m.
> To: roger koenker
> Cc: r-help
> Subject: Re: [R] "Raw" histogram plots
> 
> I know about stem, but the data set has 1 million points, so 
> it's not very useful here. I want to avoid binning just to 
> have an idea about the shape of the distribution, before 
> deciding how I'll bin it.
> 
> Andre
> 
> On Tue, 2008-02-26 at 16:20 -0600, roger koenker wrote:
> > take a look at
> > 
> > 	?stem
> > 
> > There is still a place for handtools in the age of integrated 
> > circuits.  Of course, avoiding binning isn't really desirable.
> > 
> > url:    www.econ.uiuc.edu/~roger            Roger Koenker
> > email    rkoenker at uiuc.edu            Department of Economics
> > vox:     217-333-4558                University of Illinois
> > fax:       217-244-6678                Champaign, IL 61820
> > 
> > 
> > On Feb 26, 2008, at 4:10 PM, Andre Nathan wrote:
> > 
> > > Hello
> > >
> > > I need to plot a histogram, but insted of using bars, I'd like to 
> > > plot the data points. I've been doing it like this so far:
> > >
> > >  h <- hist(x, plot = F)
> > >  plot(y = x$counts / sum(x$counts),
> > >       x = x$breaks[2:length(x$breaks)],
> > >       type = "p", log = "xy")
> > >
> > > Sometimes I want to have a look at the "raw" data 
> (avoiding any kind 
> > > of binning). When x only contains integers, it's easy to just use 
> > > bins of size 1 when generating h with "breaks = seq(0, max(x))".
> > >
> > > Is there any way to do something similar when x consists of 
> > > fractional data? What I'm doing is setting a small bin 
> length (for 
> > > example, "breaks = seq(0, 1, by = 1e-6)", but there's 
> still a chance 
> > > that points will be grouped in a single bin.
> > >
> > > Is there a better way to do this kind of "raw histogram" plotting?
> > >
> > > Thanks,
> > > Andre
> > >
> > > ______________________________________________
> > > R-help at 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 at r-project.org mailing list
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> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 

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