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*Subject*: **Re: [office-formula] CHITEST definition**

*From*:**"Andreas J. Guelzow" <aguelzow@math.concordia.ab.ca>***To*: Eike Rathke <erack@sun.com>*Date*: Fri, 09 Mar 2007 14:36:03 -0700

On Fri, 2007-09-03 at 20:41 +0100, Eike Rathke wrote: > On Friday, 2007-03-09 19:32:01 +0100, Eike Rathke wrote: > > > Furthermore, Ecma/Excel's definition of degrees of freedom looks weird, > > for rows>1 and cols>1 they say it would be (rows-1)*(cols-1). Why?!? > > Btw, OOo does the same. Probably because it was documented as such. Which test is CHITEST supposed to perform? In the cases of a test for independence or a test of homogeneity, these degrees of freedom make sense. (But we should have only one regular region). In the case of a Goodness-of-Fit test one would have observed and expected frequencies (corresponding to each other) and the degree of freedom should be n-1. They all use the chi-square distribution and are referreed to as chi-tests. Andreas -- Andreas J. Guelzow, Professor Dept. of Mathematical & Computing Sciences Concordia University College of Alberta

**Follow-Ups**:**Re: [office-formula] CHITEST definition***From:*Eike Rathke <erack@sun.com>

**References**:**CHITEST definition***From:*Eike Rathke <erack@sun.com>

**Re: [office-formula] CHITEST definition***From:*Eike Rathke <erack@sun.com>

**Re: [office-formula] CHITEST definition***From:*Eike Rathke <erack@sun.com>

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