[R] f-test

Mark Myatt mark at myatt.demon.co.uk
Wed Dec 12 11:00:18 CET 2001

Rik Bradt <rik.bradt at cropdesign.com> writes:
>I'm using R to do statistics on datasets, and now I need an f-test, 
>which I can't find in R.
>Is there such a thing as an f-test. T-test seems to work fine, but ..

It all depends on what you mean by an 'F test' since there are numerous
tests for all sorts of things that share that name. The function
var.test() compares variances as an F test. The aov() function also does
an F test on the significance of individual variables in an analysis of
variance model. See help(var.test) and help(aov) for more details.


Mark Myatt

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