Aliases: transform transform.default transform.data.frame
Keywords: manip
### ** Examples transform(airquality, Ozone = -Ozone)
Ozone Solar.R Wind Temp Month Day 1 -41 190 7.4 67 5 1 2 -36 118 8.0 72 5 2 3 -12 149 12.6 74 5 3 4 -18 313 11.5 62 5 4 5 NA NA 14.3 56 5 5 6 -28 NA 14.9 66 5 6 7 -23 299 8.6 65 5 7 8 -19 99 13.8 59 5 8 9 -8 19 20.1 61 5 9 10 NA 194 8.6 69 5 10 11 -7 NA 6.9 74 5 11 12 -16 256 9.7 69 5 12 13 -11 290 9.2 66 5 13 14 -14 274 10.9 68 5 14 15 -18 65 13.2 58 5 15 16 -14 334 11.5 64 5 16 17 -34 307 12.0 66 5 17 18 -6 78 18.4 57 5 18 19 -30 322 11.5 68 5 19 20 -11 44 9.7 62 5 20 21 -1 8 9.7 59 5 21 22 -11 320 16.6 73 5 22 23 -4 25 9.7 61 5 23 24 -32 92 12.0 61 5 24 25 NA 66 16.6 57 5 25 26 NA 266 14.9 58 5 26 27 NA NA 8.0 57 5 27 28 -23 13 12.0 67 5 28 29 -45 252 14.9 81 5 29 30 -115 223 5.7 79 5 30 31 -37 279 7.4 76 5 31 32 NA 286 8.6 78 6 1 33 NA 287 9.7 74 6 2 34 NA 242 16.1 67 6 3 35 NA 186 9.2 84 6 4 36 NA 220 8.6 85 6 5 37 NA 264 14.3 79 6 6 38 -29 127 9.7 82 6 7 39 NA 273 6.9 87 6 8 40 -71 291 13.8 90 6 9 41 -39 323 11.5 87 6 10 42 NA 259 10.9 93 6 11 43 NA 250 9.2 92 6 12 44 -23 148 8.0 82 6 13 45 NA 332 13.8 80 6 14 46 NA 322 11.5 79 6 15 47 -21 191 14.9 77 6 16 48 -37 284 20.7 72 6 17 49 -20 37 9.2 65 6 18 50 -12 120 11.5 73 6 19 51 -13 137 10.3 76 6 20 52 NA 150 6.3 77 6 21 53 NA 59 1.7 76 6 22 54 NA 91 4.6 76 6 23 55 NA 250 6.3 76 6 24 56 NA 135 8.0 75 6 25 57 NA 127 8.0 78 6 26 58 NA 47 10.3 73 6 27 59 NA 98 11.5 80 6 28 60 NA 31 14.9 77 6 29 61 NA 138 8.0 83 6 30 62 -135 269 4.1 84 7 1 63 -49 248 9.2 85 7 2 64 -32 236 9.2 81 7 3 65 NA 101 10.9 84 7 4 66 -64 175 4.6 83 7 5 67 -40 314 10.9 83 7 6 68 -77 276 5.1 88 7 7 69 -97 267 6.3 92 7 8 70 -97 272 5.7 92 7 9 71 -85 175 7.4 89 7 10 72 NA 139 8.6 82 7 11 73 -10 264 14.3 73 7 12 74 -27 175 14.9 81 7 13 75 NA 291 14.9 91 7 14 76 -7 48 14.3 80 7 15 77 -48 260 6.9 81 7 16 78 -35 274 10.3 82 7 17 79 -61 285 6.3 84 7 18 80 -79 187 5.1 87 7 19 81 -63 220 11.5 85 7 20 82 -16 7 6.9 74 7 21 83 NA 258 9.7 81 7 22 84 NA 295 11.5 82 7 23 85 -80 294 8.6 86 7 24 86 -108 223 8.0 85 7 25 87 -20 81 8.6 82 7 26 88 -52 82 12.0 86 7 27 89 -82 213 7.4 88 7 28 90 -50 275 7.4 86 7 29 91 -64 253 7.4 83 7 30 92 -59 254 9.2 81 7 31 93 -39 83 6.9 81 8 1 94 -9 24 13.8 81 8 2 95 -16 77 7.4 82 8 3 96 -78 NA 6.9 86 8 4 97 -35 NA 7.4 85 8 5 98 -66 NA 4.6 87 8 6 99 -122 255 4.0 89 8 7 100 -89 229 10.3 90 8 8 101 -110 207 8.0 90 8 9 102 NA 222 8.6 92 8 10 103 NA 137 11.5 86 8 11 104 -44 192 11.5 86 8 12 105 -28 273 11.5 82 8 13 106 -65 157 9.7 80 8 14 107 NA 64 11.5 79 8 15 108 -22 71 10.3 77 8 16 109 -59 51 6.3 79 8 17 110 -23 115 7.4 76 8 18 111 -31 244 10.9 78 8 19 112 -44 190 10.3 78 8 20 113 -21 259 15.5 77 8 21 114 -9 36 14.3 72 8 22 115 NA 255 12.6 75 8 23 116 -45 212 9.7 79 8 24 117 -168 238 3.4 81 8 25 118 -73 215 8.0 86 8 26 119 NA 153 5.7 88 8 27 120 -76 203 9.7 97 8 28 121 -118 225 2.3 94 8 29 122 -84 237 6.3 96 8 30 123 -85 188 6.3 94 8 31 124 -96 167 6.9 91 9 1 125 -78 197 5.1 92 9 2 126 -73 183 2.8 93 9 3 127 -91 189 4.6 93 9 4 128 -47 95 7.4 87 9 5 129 -32 92 15.5 84 9 6 130 -20 252 10.9 80 9 7 131 -23 220 10.3 78 9 8 132 -21 230 10.9 75 9 9 133 -24 259 9.7 73 9 10 134 -44 236 14.9 81 9 11 135 -21 259 15.5 76 9 12 136 -28 238 6.3 77 9 13 137 -9 24 10.9 71 9 14 138 -13 112 11.5 71 9 15 139 -46 237 6.9 78 9 16 140 -18 224 13.8 67 9 17 141 -13 27 10.3 76 9 18 142 -24 238 10.3 68 9 19 143 -16 201 8.0 82 9 20 144 -13 238 12.6 64 9 21 145 -23 14 9.2 71 9 22 146 -36 139 10.3 81 9 23 147 -7 49 10.3 69 9 24 148 -14 20 16.6 63 9 25 149 -30 193 6.9 70 9 26 150 NA 145 13.2 77 9 27 151 -14 191 14.3 75 9 28 152 -18 131 8.0 76 9 29 153 -20 223 11.5 68 9 30
transform(airquality, new = -Ozone, Temp = (Temp-32)/1.8)
Ozone Solar.R Wind Temp Month Day new 1 41 190 7.4 19.44444 5 1 -41 2 36 118 8.0 22.22222 5 2 -36 3 12 149 12.6 23.33333 5 3 -12 4 18 313 11.5 16.66667 5 4 -18 5 NA NA 14.3 13.33333 5 5 NA 6 28 NA 14.9 18.88889 5 6 -28 7 23 299 8.6 18.33333 5 7 -23 8 19 99 13.8 15.00000 5 8 -19 9 8 19 20.1 16.11111 5 9 -8 10 NA 194 8.6 20.55556 5 10 NA 11 7 NA 6.9 23.33333 5 11 -7 12 16 256 9.7 20.55556 5 12 -16 13 11 290 9.2 18.88889 5 13 -11 14 14 274 10.9 20.00000 5 14 -14 15 18 65 13.2 14.44444 5 15 -18 16 14 334 11.5 17.77778 5 16 -14 17 34 307 12.0 18.88889 5 17 -34 18 6 78 18.4 13.88889 5 18 -6 19 30 322 11.5 20.00000 5 19 -30 20 11 44 9.7 16.66667 5 20 -11 21 1 8 9.7 15.00000 5 21 -1 22 11 320 16.6 22.77778 5 22 -11 23 4 25 9.7 16.11111 5 23 -4 24 32 92 12.0 16.11111 5 24 -32 25 NA 66 16.6 13.88889 5 25 NA 26 NA 266 14.9 14.44444 5 26 NA 27 NA NA 8.0 13.88889 5 27 NA 28 23 13 12.0 19.44444 5 28 -23 29 45 252 14.9 27.22222 5 29 -45 30 115 223 5.7 26.11111 5 30 -115 31 37 279 7.4 24.44444 5 31 -37 32 NA 286 8.6 25.55556 6 1 NA 33 NA 287 9.7 23.33333 6 2 NA 34 NA 242 16.1 19.44444 6 3 NA 35 NA 186 9.2 28.88889 6 4 NA 36 NA 220 8.6 29.44444 6 5 NA 37 NA 264 14.3 26.11111 6 6 NA 38 29 127 9.7 27.77778 6 7 -29 39 NA 273 6.9 30.55556 6 8 NA 40 71 291 13.8 32.22222 6 9 -71 41 39 323 11.5 30.55556 6 10 -39 42 NA 259 10.9 33.88889 6 11 NA 43 NA 250 9.2 33.33333 6 12 NA 44 23 148 8.0 27.77778 6 13 -23 45 NA 332 13.8 26.66667 6 14 NA 46 NA 322 11.5 26.11111 6 15 NA 47 21 191 14.9 25.00000 6 16 -21 48 37 284 20.7 22.22222 6 17 -37 49 20 37 9.2 18.33333 6 18 -20 50 12 120 11.5 22.77778 6 19 -12 51 13 137 10.3 24.44444 6 20 -13 52 NA 150 6.3 25.00000 6 21 NA 53 NA 59 1.7 24.44444 6 22 NA 54 NA 91 4.6 24.44444 6 23 NA 55 NA 250 6.3 24.44444 6 24 NA 56 NA 135 8.0 23.88889 6 25 NA 57 NA 127 8.0 25.55556 6 26 NA 58 NA 47 10.3 22.77778 6 27 NA 59 NA 98 11.5 26.66667 6 28 NA 60 NA 31 14.9 25.00000 6 29 NA 61 NA 138 8.0 28.33333 6 30 NA 62 135 269 4.1 28.88889 7 1 -135 63 49 248 9.2 29.44444 7 2 -49 64 32 236 9.2 27.22222 7 3 -32 65 NA 101 10.9 28.88889 7 4 NA 66 64 175 4.6 28.33333 7 5 -64 67 40 314 10.9 28.33333 7 6 -40 68 77 276 5.1 31.11111 7 7 -77 69 97 267 6.3 33.33333 7 8 -97 70 97 272 5.7 33.33333 7 9 -97 71 85 175 7.4 31.66667 7 10 -85 72 NA 139 8.6 27.77778 7 11 NA 73 10 264 14.3 22.77778 7 12 -10 74 27 175 14.9 27.22222 7 13 -27 75 NA 291 14.9 32.77778 7 14 NA 76 7 48 14.3 26.66667 7 15 -7 77 48 260 6.9 27.22222 7 16 -48 78 35 274 10.3 27.77778 7 17 -35 79 61 285 6.3 28.88889 7 18 -61 80 79 187 5.1 30.55556 7 19 -79 81 63 220 11.5 29.44444 7 20 -63 82 16 7 6.9 23.33333 7 21 -16 83 NA 258 9.7 27.22222 7 22 NA 84 NA 295 11.5 27.77778 7 23 NA 85 80 294 8.6 30.00000 7 24 -80 86 108 223 8.0 29.44444 7 25 -108 87 20 81 8.6 27.77778 7 26 -20 88 52 82 12.0 30.00000 7 27 -52 89 82 213 7.4 31.11111 7 28 -82 90 50 275 7.4 30.00000 7 29 -50 91 64 253 7.4 28.33333 7 30 -64 92 59 254 9.2 27.22222 7 31 -59 93 39 83 6.9 27.22222 8 1 -39 94 9 24 13.8 27.22222 8 2 -9 95 16 77 7.4 27.77778 8 3 -16 96 78 NA 6.9 30.00000 8 4 -78 97 35 NA 7.4 29.44444 8 5 -35 98 66 NA 4.6 30.55556 8 6 -66 99 122 255 4.0 31.66667 8 7 -122 100 89 229 10.3 32.22222 8 8 -89 101 110 207 8.0 32.22222 8 9 -110 102 NA 222 8.6 33.33333 8 10 NA 103 NA 137 11.5 30.00000 8 11 NA 104 44 192 11.5 30.00000 8 12 -44 105 28 273 11.5 27.77778 8 13 -28 106 65 157 9.7 26.66667 8 14 -65 107 NA 64 11.5 26.11111 8 15 NA 108 22 71 10.3 25.00000 8 16 -22 109 59 51 6.3 26.11111 8 17 -59 110 23 115 7.4 24.44444 8 18 -23 111 31 244 10.9 25.55556 8 19 -31 112 44 190 10.3 25.55556 8 20 -44 113 21 259 15.5 25.00000 8 21 -21 114 9 36 14.3 22.22222 8 22 -9 115 NA 255 12.6 23.88889 8 23 NA 116 45 212 9.7 26.11111 8 24 -45 117 168 238 3.4 27.22222 8 25 -168 118 73 215 8.0 30.00000 8 26 -73 119 NA 153 5.7 31.11111 8 27 NA 120 76 203 9.7 36.11111 8 28 -76 121 118 225 2.3 34.44444 8 29 -118 122 84 237 6.3 35.55556 8 30 -84 123 85 188 6.3 34.44444 8 31 -85 124 96 167 6.9 32.77778 9 1 -96 125 78 197 5.1 33.33333 9 2 -78 126 73 183 2.8 33.88889 9 3 -73 127 91 189 4.6 33.88889 9 4 -91 128 47 95 7.4 30.55556 9 5 -47 129 32 92 15.5 28.88889 9 6 -32 130 20 252 10.9 26.66667 9 7 -20 131 23 220 10.3 25.55556 9 8 -23 132 21 230 10.9 23.88889 9 9 -21 133 24 259 9.7 22.77778 9 10 -24 134 44 236 14.9 27.22222 9 11 -44 135 21 259 15.5 24.44444 9 12 -21 136 28 238 6.3 25.00000 9 13 -28 137 9 24 10.9 21.66667 9 14 -9 138 13 112 11.5 21.66667 9 15 -13 139 46 237 6.9 25.55556 9 16 -46 140 18 224 13.8 19.44444 9 17 -18 141 13 27 10.3 24.44444 9 18 -13 142 24 238 10.3 20.00000 9 19 -24 143 16 201 8.0 27.77778 9 20 -16 144 13 238 12.6 17.77778 9 21 -13 145 23 14 9.2 21.66667 9 22 -23 146 36 139 10.3 27.22222 9 23 -36 147 7 49 10.3 20.55556 9 24 -7 148 14 20 16.6 17.22222 9 25 -14 149 30 193 6.9 21.11111 9 26 -30 150 NA 145 13.2 25.00000 9 27 NA 151 14 191 14.3 23.88889 9 28 -14 152 18 131 8.0 24.44444 9 29 -18 153 20 223 11.5 20.00000 9 30 -20
attach(airquality) transform(Ozone, logOzone = log(Ozone)) # marginally interesting ...
X_data logOzone 1 41 3.713572 2 36 3.583519 3 12 2.484907 4 18 2.890372 5 NA NA 6 28 3.332205 7 23 3.135494 8 19 2.944439 9 8 2.079442 10 NA NA 11 7 1.945910 12 16 2.772589 13 11 2.397895 14 14 2.639057 15 18 2.890372 16 14 2.639057 17 34 3.526361 18 6 1.791759 19 30 3.401197 20 11 2.397895 21 1 0.000000 22 11 2.397895 23 4 1.386294 24 32 3.465736 25 NA NA 26 NA NA 27 NA NA 28 23 3.135494 29 45 3.806662 30 115 4.744932 31 37 3.610918 32 NA NA 33 NA NA 34 NA NA 35 NA NA 36 NA NA 37 NA NA 38 29 3.367296 39 NA NA 40 71 4.262680 41 39 3.663562 42 NA NA 43 NA NA 44 23 3.135494 45 NA NA 46 NA NA 47 21 3.044522 48 37 3.610918 49 20 2.995732 50 12 2.484907 51 13 2.564949 52 NA NA 53 NA NA 54 NA NA 55 NA NA 56 NA NA 57 NA NA 58 NA NA 59 NA NA 60 NA NA 61 NA NA 62 135 4.905275 63 49 3.891820 64 32 3.465736 65 NA NA 66 64 4.158883 67 40 3.688879 68 77 4.343805 69 97 4.574711 70 97 4.574711 71 85 4.442651 72 NA NA 73 10 2.302585 74 27 3.295837 75 NA NA 76 7 1.945910 77 48 3.871201 78 35 3.555348 79 61 4.110874 80 79 4.369448 81 63 4.143135 82 16 2.772589 83 NA NA 84 NA NA 85 80 4.382027 86 108 4.682131 87 20 2.995732 88 52 3.951244 89 82 4.406719 90 50 3.912023 91 64 4.158883 92 59 4.077537 93 39 3.663562 94 9 2.197225 95 16 2.772589 96 78 4.356709 97 35 3.555348 98 66 4.189655 99 122 4.804021 100 89 4.488636 101 110 4.700480 102 NA NA 103 NA NA 104 44 3.784190 105 28 3.332205 106 65 4.174387 107 NA NA 108 22 3.091042 109 59 4.077537 110 23 3.135494 111 31 3.433987 112 44 3.784190 113 21 3.044522 114 9 2.197225 115 NA NA 116 45 3.806662 117 168 5.123964 118 73 4.290459 119 NA NA 120 76 4.330733 121 118 4.770685 122 84 4.430817 123 85 4.442651 124 96 4.564348 125 78 4.356709 126 73 4.290459 127 91 4.510860 128 47 3.850148 129 32 3.465736 130 20 2.995732 131 23 3.135494 132 21 3.044522 133 24 3.178054 134 44 3.784190 135 21 3.044522 136 28 3.332205 137 9 2.197225 138 13 2.564949 139 46 3.828641 140 18 2.890372 141 13 2.564949 142 24 3.178054 143 16 2.772589 144 13 2.564949 145 23 3.135494 146 36 3.583519 147 7 1.945910 148 14 2.639057 149 30 3.401197 150 NA NA 151 14 2.639057 152 18 2.890372 153 20 2.995732
detach(airquality)