[R-sig-teaching] T-test

Martin Maechler maechler at stat.math.ethz.ch
Mon Jun 29 16:55:10 CEST 2009

Wrong Mailing List !!

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>>>>> "AA" == AbouEl-Makarim Aboueissa <aaboueissa at usm.maine.edu>
>>>>>     on Mon, 29 Jun 2009 10:32:04 -0400 writes:

    AA> Dear All:

    AA> I hope that this message finds you well.

    AA> I need some helps with t-test in R.

    AA> Assume I have the following data sets:


    AA> What I need to do is to use the t-test (two-independent
    AA> samples) to compare each pairs.

    AA> For examples:

    AA> X1 versus X2 X1 versus X3 ..  ..  ..  X1 versus X8

    AA> and

    AA> X2 versus X3 X2 versus X4 ..  ..  ..  X2 versus X8

    AA> and so on.

    AA> My question: Is there away in R to do this in one step
    AA> instead of doing it in many steps (pairs by pairs)?

    AA> With many thanks.

    AA>  Abou

    AA> ========================== AbouEl-Makarim Aboueissa,
    AA> Ph.D.  Assistant Professor of Statistics Department of
    AA> Mathematics & Statistics University of Southern Maine 96
    AA> Falmouth Street P.O. Box 9300 Portland, ME 04104-9300
    AA> USA

    AA> Tel: (207) 228-8389 Fax: (207) 780-5607 Email:
    AA> aaboueissa at usm.maine.edu aboueiss at yahoo.com

    AA> Web address: http://www.usm.maine.edu/~aaboueissa/

    AA> Office: 301C Payson Smith

    AA> 	[[alternative HTML version deleted]]

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