*From*: "Andreas J. Guelzow" <aguelzow pyrshep ca>*To*: "Daniel P. Dougherty" <doughe57 msu edu>*Cc*: gnumeric-list gnome org*Subject*: Re: Histogram "Bins" tab options problem*Date*: Tue, 08 Feb 2011 11:44:55 -0700

On Tue, 2011-02-08 at 13:32 -0500, Daniel P. Dougherty wrote:

Under the bins tab on the histogram dialog there is a possible error in the labels. The issue is how to capture the finite minimum and maximum data values in a bin?? I think it is more correct that the 8 rules should each be stated as: (-inf,*),[*,*),...,[*,*),[*,+inf) (-inf,*],(*,*],...,(*,*],(*,+inf) [*,*),[*,*),...,[*,*),[*,+inf) [*,*],(*,*],...,(*,*],(*,+inf] (-inf,*),[*,*),...,[*,*),[*,*] (-inf,*],(*,*],...,(*,*],(*,*] [*,*),[*,*),...,[*,*),[*,*] [*,*],(*,*],...,(*,*],(*,*]

Comparing the above with the current git version I see that you are suggesting (with respect to the first interval): [*,*],(*,*],...,(*,*],(*,+inf] [*,*],(*,*],...,(*,*],(*,*] instead of (*,*],(*,*],...,(*,*],(*,+inf) (*,*],(*,*],...,(*,*],(*,*] and (with respect to the last interval): (-inf,*),[*,*),...,[*,*),[*,*] [*,*),[*,*),...,[*,*),[*,*] instead of (-inf,*),[*,*),...,[*,*),[*,*) [*,*),[*,*),...,[*,*),[*,*) Your suggestion would make the first or last interval significantly different from the others. Of course the probability that an observation happens to hit the border is basically 0 (unless you are really having a discrete distribution and should be using frequency tables instead of histograms.) I don't think this maximum/minimum cutoff should really ever be equal to the value of an observation. Andreas

**Follow-Ups**:**Re: Histogram "Bins" tab options problem***From:*Daniel P. Dougherty

**Re: Histogram "Bins" tab options problem***From:*Daniel P. Dougherty

**References**:**Histogram "Bins" tab options problem***From:*Daniel P. Dougherty

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