[R] paired t-test with bootstrap

Vito Ricci vito_ricci at yahoo.com
Tue Jul 13 16:36:12 CEST 2004


On 13 Jul 2004 at 12:28, luciana wrote:

> Dear Sirs,
> I have a sample of diabetic people, matched (by age
and sex) with a
> control sample. The variable I would like to compare
is their drug
> and hospital monthly cost. The variable cost has a
very far from
> gaussian distribution, but I need any way to compare
the mean
> between the two group. So, in the specific case of a
paired sample
> t-test, I aim at testing if the difference of cost
is close to 0.
> What is the better way to follow for that?

I can suggest to see:

? pairwise.wilcox.test()
? wilcox.test

using non-parametric tests instead of t-test.


Diventare costruttori di soluzioni

Visitate il portale http://www.modugno.it/
e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml

More information about the R-help mailing list