bb44 (1) [Avatar] Offline
It seems to me that the code for standard deviation calculation on page 127 is wrong. Shouldn't it be like this:

sd(c(3.206171, 5.369698, 8.175691, 2.739249, 4.839496))

Jonathan Carroll (5) [Avatar] Offline
Great catch! The most recent version (imminently due for publication, so you had me a little panicked) doesn't have the sd example at all, but you were right, this was a code error.