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Re: Histogram [message #44610 is a reply to message #44556]

Fri, 01 July 2005 11:37

R.G. Stockwell
Messages: 363
Registered: July 1999

Senior Member

"James" <adelante@bigmir.net> wrote in message
news:op.ss286rraljbjj6@pc008427.hq.eso.org...
> Hi guys !
>
> I have a question regarding histograms in general. Is there a "right"
> criteria (e.g. strict matmematical rule, etc..) of chosing the bin size ?
> I'm playing with some data and obviously the histogram looks differently
> with different bin sizes. Any help and references would be extremely
> helpful !
>
> Cheers,
> James

It depends on what question the histogram is supposed to answer.

Obviously larger bins will have a smoother appearance, but
perhaps normalizing the bins, so that it is a density rather than a
mere count would help it look more similar for different bin sizes.

(i.e. divide the count in each bin by the binsize)

Cheers,
bob

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[Message index]

		Histogram By: James[1] on Tue, 28 June 2005 09:24
		Re: Histogram By: R.G. Stockwell on Fri, 01 July 2005 11:37
		Re: histogram By: rinceboy on Wed, 12 August 2009 07:12
		Re: histogram By: jameskuyper on Wed, 12 August 2009 06:15
		Re: histogram By: rinceboy on Wed, 12 August 2009 04:00
		Re: histogram By: David Fanning on Tue, 11 August 2009 10:17
		Re: histogram By: Maxwell Peck on Mon, 29 March 2010 03:08
		Re: Histogram By: David Grier on Mon, 11 October 2010 07:16
		Re: Histogram By: David Fanning on Mon, 11 October 2010 06:51
		Re: HISTOGRAM By: d.poreh on Wed, 23 January 2013 05:06
		Re: HISTOGRAM By: Helder Marchetto on Wed, 23 January 2013 03:44
		Re: HISTOGRAM By: Mats Löfdahl on Wed, 23 January 2013 03:26

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