datasets::sleep()

?sleep #sleep 데이터셋 도움말 보기

# 아래는 example(sleep) 입니다.

require(stats)
## Student's paired t-test
with(sleep,
     t.test(extra[group == 1],
            extra[group == 2], paired = TRUE))

## The sleep *prolongations*
sleep1 <- with(sleep, extra[group == 2] - extra[group == 1])
summary(sleep1)
stripchart(sleep1, method = "stack", xlab = "hours",
           main = "Sleep prolongation (n = 10)")
boxplot(sleep1, horizontal = TRUE, add = TRUE,
        at = .6, pars = list(boxwex = 0.5, staplewex = 0.25))

Linux 사례 (MX 21)
Linux 사례 (MX 21)
Linux 사례 (MX 21)

Linux 사례 (MX 21)

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