R keele näited Käivitamiseks Linuxi käsk R > 3+2 [1] 5 > x=3 > y=5 > x*y [1] 15 > vanused=c(15, 18, 72) > vanused [1] 15 18 72 > vanused+1 [1] 16 19 73 > 2015-vanused [1] 2000 1997 1943 > vanused=vanused+1 > vanused [1] 16 19 73 > vanused2020=vanused+4 > vanused2020-vanused [1] 4 4 4 > #Sisestage kollektsioonina puude pikkused sentimeetrites > #Kuvage puude kahekordsed pikkused > pikkused=c(150, 250) > pikkused*2 [1] 300 500 > vanused [1] 16 19 73 > vanused[2] [1] 19 > length(vanused) [1] 3 > min(vanused) [1] 16 > max(vanused) [1] 73 > mean(vanused) [1] 36 > sum(vanused) [1] 108 > mtcars mpg cyl disp hp drat wt qsec vs am gear carb 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 Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2 Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4 Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2 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 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 Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 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 Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4 Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2 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 Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2 Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4 Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8 Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2 > > mtcars[mtcars$am==1,] mpg cyl disp hp drat wt qsec vs am gear carb Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1 Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2 Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2 Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4 Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8 Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2 > mtcars[mtcars$am==1,c("mpg", "am")] mpg am Mazda RX4 21.0 1 Mazda RX4 Wag 21.0 1 Datsun 710 22.8 1 Fiat 128 32.4 1 Honda Civic 30.4 1 Toyota Corolla 33.9 1 Fiat X1-9 27.3 1 Porsche 914-2 26.0 1 Lotus Europa 30.4 1 Ford Pantera L 15.8 1 Ferrari Dino 19.7 1 Maserati Bora 15.0 1 Volvo 142E 21.4 1 > row.names(mtcars) [1] "Mazda RX4" "Mazda RX4 Wag" "Datsun 710" [4] "Hornet 4 Drive" "Hornet Sportabout" "Valiant" [7] "Duster 360" "Merc 240D" "Merc 230" [10] "Merc 280" "Merc 280C" "Merc 450SE" [13] "Merc 450SL" "Merc 450SLC" "Cadillac Fleetwood" [16] "Lincoln Continental" "Chrysler Imperial" "Fiat 128" [19] "Honda Civic" "Toyota Corolla" "Toyota Corona" [22] "Dodge Challenger" "AMC Javelin" "Camaro Z28" [25] "Pontiac Firebird" "Fiat X1-9" "Porsche 914-2" [28] "Lotus Europa" "Ford Pantera L" "Ferrari Dino" [31] "Maserati Bora" "Volvo 142E" > names(mtcars) [1] "mpg" "cyl" "disp" "hp" "drat" "wt" "qsec" "vs" "am" "gear" [11] "carb" > mtcars["Honda Civic", "mpg"] [1] 30.4 > mtcars[c("Honda Civic", "Lotus Europa"), "mpg"] [1] 30.4 30.4 > margid=c("Honda Civic", "Lotus Europa") > omadused=c("mpg") > mtcars(margid, omadused) Error: could not find function "mtcars" > mtcars[margid, omadused] [1] 30.4 30.4 > omadused=c(omadused, "am") > mtcars[margid, omadused] mpg am Honda Civic 30.4 1 Lotus Europa 30.4 1 isikud.csv eesnimi,pikkus,mass Juku,180,65 Kati,170,55 Mati,175,75 > read.csv("isikud.csv") eesnimi pikkus mass 1 Juku 180 65 2 Kati 170 55 3 Mati 175 75 > isikud[order(isikud$pikkus), ] eesnimi pikkus mass 2 Kati 170 55 3 Mati 175 75 1 Juku 180 65 > isikud[order(-isikud$mass), ] eesnimi pikkus mass 3 Mati 175 75 1 Juku 180 65 2 Kati 170 55 > isikud[order(-isikud$mass), ][1] eesnimi 3 Mati 1 Juku 2 Kati > isikud[order(-isikud$mass), ][1,] eesnimi pikkus mass 3 Mati 175 75