1 개요[ | ]
- R arrange()
- "Arrange Rows By Variables"
- 지정한 변수(컬럼)들로 정렬하는 R 함수
변수 2개로 정렬
R
CPU
0.7s
MEM
71M
0.8s
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library(dplyr, warn.conflicts=FALSE)
arrange(mtcars, cyl, hp)
mpg cyl disp hp drat wt qsec vs am gear carb Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1 Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2 Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2 Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2 Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2 Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2 AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2 Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2 Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2 Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3 Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3 Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3 Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4 Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4 Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4 Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4 Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4 Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4 Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8
역순 정렬
R
Copy
library(dplyr, warn.conflicts=FALSE)
arrange(mtcars, desc(disp))
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그룹 유지한 채로 정렬
R
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library(dplyr, warn.conflicts=FALSE)
by_cyl <- mtcars %>% group_by(cyl)
by_cyl %>% arrange(desc(wt), .by_group = TRUE)
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2 같이 보기[ | ]
3 참고[ | ]
편집자 Jmnote
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