Re: [R] how to do the test for a significant difference across group mean vectors

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Tue 21 Jun 2005 - 16:45:46 EST

wu sz wrote:
> Hello there,
>
> how to do the test for a significant difference between two groups
> mean vectors or across several group means vectors?

This is not an R question.

You cannot test on mean differences without assumptions re. the variance. Please read a basic textbook on statistics.

Uwe Ligges

> Thank you,
> Shengzhe
>
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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 Tue Jun 21 16:50:42 2005

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