Hello, everyone,
I don't quite understand the following message:
> TTT <- t.test(1:10, y=c(7:20))
> class(TTT)
[1] "htest"
> [EMAIL PROTECTED]
Error: Trying to get slot "p.value" from an object whose class ("htest") is not
defined
> TTT$p.value
[1] 1.855282e-05
Why the message says the class of TTT is not defined while class(TTT) gets "htest"?
I appreciate the explanations?
-Minghua
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