[R] Rcommander and simple chisquare

John Fox jfox at mcmaster.ca
Thu Sep 15 17:31:01 CEST 2005

Dear Christian,

>From the Rcmdr menus, select "Statistics -> Summaries -> Frequency
distributions", and check the "Chisquare goodness of fit test" box in the
resulting dialog. This will bring up a dialog box where you can enter
hypothesized probabilities from which expected frequencies will be


John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Christian Jost
> Sent: Thursday, September 15, 2005 5:40 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Rcommander and simple chisquare
> In this years biostat teaching I will include Rcommander (it 
> indeed simplifies syntax problems that makes students 
> frequently miss the core statistical problems). But I could 
> not find how to make a simple chisquare comparison between 
> observed frequencies and expected frequencies (eg in genetics 
> where you expect phenotypic frequencies corresponding to 3:1 
> in standard dominant/recessif alleles). Any idea where this 
> feature might be hidden? Or could it be added to Rcommander?
> Thanks, Christian.
> ps: in case I am not making myself clear, can Rcommander be 
> made to perform
> >  chisq.test(c(61,39),p=c(0.75,0.25))
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