From: Marc Schwartz <marc_schwartz_at_comcast.net>

Date: Tue, 26 Feb 2008 20:41:34 -0600

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. Received on Wed 27 Feb 2008 - 02:44:01 GMT

Date: Tue, 26 Feb 2008 20:41:34 -0600

If the goal is to get a sense of the 'shape' of the overall distribution of 'x', then why not use:

plot(density(x))

?

**HTH,
**
Marc Schwartz

Peter Alspach wrote:

> 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.
**>>>
**>>>
**>>> 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
**>>>>
*

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