[R] Displaying a distribution -- was: Combining two histograms

[Kjetil Brinchmann Halvorsen]

Berton Gunter wrote:

>Rug plots cannot show replicated values -- spikes at discrete values -- in
>the data distribution. Quantile plots do.
>  
>
But you can use rug(jitter(x))

Kjetil

>-- Bert Gunter
>Genentech Non-Clinical Statistics
>South San Francisco, CA
> 
>"The business of the statistician is to catalyze the scientific learning
>process."  - George E. P. Box
> 
> 
>
>  
>
>>-----Original Message-----
>>From: r-help-bounces at stat.math.ethz.ch 
>>[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Gabor 
>>Grothendieck
>>Sent: Wednesday, February 02, 2005 9:20 AM
>>To: r-help at stat.math.ethz.ch
>>Subject: Re: [R] Displaying a distribution -- was: Combining 
>>two histograms
>>
>>Berton Gunter <gunter.berton <at> gene.com> writes:
>>
>>: 
>>: May I take this off topic a little to seek collective 
>>wisdom (and so feel
>>: free to reply privately).
>>: 
>>: The catalyst is Deepayan's remark:
>>: 
>>: > Histograms were appropriate for drawing density estimates by 
>>: > hand in the  good old days, but I can imagine very few 
>>situations where I 
>>: > would not prefer to use smoother density estimates when I 
>>have the 
>>: > computational power to do so.
>>: > 
>>: > Deepayan
>>: 
>>: Generally, I agree; but the appearance and thus one's perception and
>>: interpretation of both histograms and density plots depend upon the
>>: parameters chosen for the display (bin boundaries for 
>>histograms; bandwidth
>>: and kernel for density plots). 
>>
>>If the problem is distrust of the procedure one can simulataneously
>>display the raw data with a rug plot, 
>>
>>example(rug)
>>
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>>    
>>
>
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-- 

Kjetil Halvorsen.

Peace is the most effective weapon of mass construction.
               --  Mahdi Elmandjra





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