sample() issue
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