Summary
Xsum %>%
summary %>%
round(2)
## Min. 1st Qu. Median Mean 3rd Qu. Max.
## 0.89 11.90 15.34 16.01 19.40 66.62
Xsum %>%
sd %>%
round(2)
## [1] 5.68
Xsum %>%
`<=`(2) %>%
which %>%
`[`(Xsum, .) %>%
round(2)
## 506438 661442 720484 802770 822224 829048 908281
## 1.84 1.97 0.89 1.95 1.66 1.88 1.44
Xmin <- names(Xsum[which(Xsum == min(Xsum))])
Xmin
## [1] "720484"
Plot


학번
Red |
23 |
41 |
54 |
80 |
60 |
162 |
82 |
Black |
23 |
41 |
59 |
81 |
56 |
160 |
83 |
단과대학
Red |
15 |
53 |
13 |
15 |
31 |
12 |
99 |
20 |
50 |
107 |
87 |
Black |
15 |
53 |
14 |
16 |
31 |
12 |
99 |
18 |
55 |
107 |
83 |