On Dec 20, 2010, at 2:04 PM, cory n wrote:
length(sample(25000, 25000*(1-.55)))
[1] 11249
25000*(1-.55)
[1] 11250
length(sample(25000, 11250))
[1] 11250
length(sample(25000, 25000*.45))
[1] 11250
So the question is, why do I get 11249 out of the first command and
not
11250? I can't figure this one out.
Read the FAQ:
> 25000*(1-.55)-11250
[1] -1.818989e-12
> 25000*(1-.55)< 11250
[1] TRUE
?round
?all.equal
?zapsmall
--
David Winsemius, MD
West Hartford, CT
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