RE: [R] Difference between difference of means

From: John Fox <jfox_at_mcmaster.ca>
Date: Thu 05 May 2005 - 01:42:35 EST


Dear Peter,

This looks like a two-way ANOVA, with product as one factor and condition as the other. The test that you describe is for the interaction between product and condition.

I hope this helps,
 John



John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox

> -----Original Message-----
> From: r-help-bounces@stat.math.ethz.ch
> [mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Peter Zorg
> Sent: Wednesday, May 04, 2005 9:24 AM
> To: r-help@stat.math.ethz.ch
> Subject: [R] Difference between difference of means
>
> Hi
> I would like to compare two differences of means.
> I have the means of the log of one variable for two
> conditions for one product, and for another product.
> The differences look different between both products for the
> two conditions, but a statistical test is required.
> Thank you for any hint
>
> Peter
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu May 05 02:06:35 2005

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