On Oct 7, 2010, at 7:39 AM, paulideali...@aol.com wrote:
Hello to all R users,
I use R for a year now and am dealing with geometric morphometrics
of deer skulls. Yes, I am a biologist and my math skills are just
beginning to brush up. To cut to the chase...
I have two groups in my data (males and females) and my data is in a
simple vector form. Now I need a bootstrap test for this value
szc1 <- ((mean(maleCent)-mean(femaCent))^ 2)/(var(maleCent)
+var(femaCent))
which concerns two aforementioned groups. I have 39 males and 11
females totaling to 50 individuals. Now I don`t know how to assign
this to a bootstrap boot() function. Any ideas?
Looks like you are attempting the first part of a a two group t-test.
Have you thought of using that function? And it would seem that you
have not yet looked at the examples on the boot funtion's page in
package boot.
--
David Winsemius, MD
West Hartford, CT
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