Remove NA values in ts-boxable objects, turning explicit into implicit missing values.
Value
a ts-boxable object of the same class as x, i.e., an object of
class ts, xts, zoo, zooreg, data.frame, data.table, tbl,
tbl_ts, tbl_time, tis, irts or timeSeries.
Details
Note that internal NAs in ts time series will not be removed, as this
conflicts with the regular structure.
See also
ts_regular, for the opposite, turning implicit into explicit missing values.
Examples
x <- AirPassengers
x[c(2, 4)] <- NA
# A ts object does only know explicit NAs
ts_na_omit(x)
#> Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
#> 1949 112 NA 132 NA 121 135 148 148 136 119 104 118
#> 1950 115 126 141 135 125 149 170 170 158 133 114 140
#> 1951 145 150 178 163 172 178 199 199 184 162 146 166
#> 1952 171 180 193 181 183 218 230 242 209 191 172 194
#> 1953 196 196 236 235 229 243 264 272 237 211 180 201
#> 1954 204 188 235 227 234 264 302 293 259 229 203 229
#> 1955 242 233 267 269 270 315 364 347 312 274 237 278
#> 1956 284 277 317 313 318 374 413 405 355 306 271 306
#> 1957 315 301 356 348 355 422 465 467 404 347 305 336
#> 1958 340 318 362 348 363 435 491 505 404 359 310 337
#> 1959 360 342 406 396 420 472 548 559 463 407 362 405
#> 1960 417 391 419 461 472 535 622 606 508 461 390 432
# by default, NAs are implicit in data frames
ts_df(x)
#> time value
#> 1 1949-01-01 112
#> 2 1949-02-01 NA
#> 3 1949-03-01 132
#> 4 1949-04-01 NA
#> 5 1949-05-01 121
#> 6 1949-06-01 135
#> 7 1949-07-01 148
#> 8 1949-08-01 148
#> 9 1949-09-01 136
#> 10 1949-10-01 119
#> 11 1949-11-01 104
#> 12 1949-12-01 118
#> 13 1950-01-01 115
#> 14 1950-02-01 126
#> 15 1950-03-01 141
#> 16 1950-04-01 135
#> 17 1950-05-01 125
#> 18 1950-06-01 149
#> 19 1950-07-01 170
#> 20 1950-08-01 170
#> 21 1950-09-01 158
#> 22 1950-10-01 133
#> 23 1950-11-01 114
#> 24 1950-12-01 140
#> 25 1951-01-01 145
#> 26 1951-02-01 150
#> 27 1951-03-01 178
#> 28 1951-04-01 163
#> 29 1951-05-01 172
#> 30 1951-06-01 178
#> 31 1951-07-01 199
#> 32 1951-08-01 199
#> 33 1951-09-01 184
#> 34 1951-10-01 162
#> 35 1951-11-01 146
#> 36 1951-12-01 166
#> 37 1952-01-01 171
#> 38 1952-02-01 180
#> 39 1952-03-01 193
#> 40 1952-04-01 181
#> 41 1952-05-01 183
#> 42 1952-06-01 218
#> 43 1952-07-01 230
#> 44 1952-08-01 242
#> 45 1952-09-01 209
#> 46 1952-10-01 191
#> 47 1952-11-01 172
#> 48 1952-12-01 194
#> 49 1953-01-01 196
#> 50 1953-02-01 196
#> 51 1953-03-01 236
#> 52 1953-04-01 235
#> 53 1953-05-01 229
#> 54 1953-06-01 243
#> 55 1953-07-01 264
#> 56 1953-08-01 272
#> 57 1953-09-01 237
#> 58 1953-10-01 211
#> 59 1953-11-01 180
#> 60 1953-12-01 201
#> 61 1954-01-01 204
#> 62 1954-02-01 188
#> 63 1954-03-01 235
#> 64 1954-04-01 227
#> 65 1954-05-01 234
#> 66 1954-06-01 264
#> 67 1954-07-01 302
#> 68 1954-08-01 293
#> 69 1954-09-01 259
#> 70 1954-10-01 229
#> 71 1954-11-01 203
#> 72 1954-12-01 229
#> 73 1955-01-01 242
#> 74 1955-02-01 233
#> 75 1955-03-01 267
#> 76 1955-04-01 269
#> 77 1955-05-01 270
#> 78 1955-06-01 315
#> 79 1955-07-01 364
#> 80 1955-08-01 347
#> 81 1955-09-01 312
#> 82 1955-10-01 274
#> 83 1955-11-01 237
#> 84 1955-12-01 278
#> 85 1956-01-01 284
#> 86 1956-02-01 277
#> 87 1956-03-01 317
#> 88 1956-04-01 313
#> 89 1956-05-01 318
#> 90 1956-06-01 374
#> 91 1956-07-01 413
#> 92 1956-08-01 405
#> 93 1956-09-01 355
#> 94 1956-10-01 306
#> 95 1956-11-01 271
#> 96 1956-12-01 306
#> 97 1957-01-01 315
#> 98 1957-02-01 301
#> 99 1957-03-01 356
#> 100 1957-04-01 348
#> 101 1957-05-01 355
#> 102 1957-06-01 422
#> 103 1957-07-01 465
#> 104 1957-08-01 467
#> 105 1957-09-01 404
#> 106 1957-10-01 347
#> 107 1957-11-01 305
#> 108 1957-12-01 336
#> 109 1958-01-01 340
#> 110 1958-02-01 318
#> 111 1958-03-01 362
#> 112 1958-04-01 348
#> 113 1958-05-01 363
#> 114 1958-06-01 435
#> 115 1958-07-01 491
#> 116 1958-08-01 505
#> 117 1958-09-01 404
#> 118 1958-10-01 359
#> 119 1958-11-01 310
#> 120 1958-12-01 337
#> 121 1959-01-01 360
#> 122 1959-02-01 342
#> 123 1959-03-01 406
#> 124 1959-04-01 396
#> 125 1959-05-01 420
#> 126 1959-06-01 472
#> 127 1959-07-01 548
#> 128 1959-08-01 559
#> 129 1959-09-01 463
#> 130 1959-10-01 407
#> 131 1959-11-01 362
#> 132 1959-12-01 405
#> 133 1960-01-01 417
#> 134 1960-02-01 391
#> 135 1960-03-01 419
#> 136 1960-04-01 461
#> 137 1960-05-01 472
#> 138 1960-06-01 535
#> 139 1960-07-01 622
#> 140 1960-08-01 606
#> 141 1960-09-01 508
#> 142 1960-10-01 461
#> 143 1960-11-01 390
#> 144 1960-12-01 432
# make NAs explicit
ts_regular(ts_df(x))
#> time value
#> 1 1949-01-01 112
#> 2 1949-02-01 NA
#> 3 1949-03-01 132
#> 4 1949-04-01 NA
#> 5 1949-05-01 121
#> 6 1949-06-01 135
#> 7 1949-07-01 148
#> 8 1949-08-01 148
#> 9 1949-09-01 136
#> 10 1949-10-01 119
#> 11 1949-11-01 104
#> 12 1949-12-01 118
#> 13 1950-01-01 115
#> 14 1950-02-01 126
#> 15 1950-03-01 141
#> 16 1950-04-01 135
#> 17 1950-05-01 125
#> 18 1950-06-01 149
#> 19 1950-07-01 170
#> 20 1950-08-01 170
#> 21 1950-09-01 158
#> 22 1950-10-01 133
#> 23 1950-11-01 114
#> 24 1950-12-01 140
#> 25 1951-01-01 145
#> 26 1951-02-01 150
#> 27 1951-03-01 178
#> 28 1951-04-01 163
#> 29 1951-05-01 172
#> 30 1951-06-01 178
#> 31 1951-07-01 199
#> 32 1951-08-01 199
#> 33 1951-09-01 184
#> 34 1951-10-01 162
#> 35 1951-11-01 146
#> 36 1951-12-01 166
#> 37 1952-01-01 171
#> 38 1952-02-01 180
#> 39 1952-03-01 193
#> 40 1952-04-01 181
#> 41 1952-05-01 183
#> 42 1952-06-01 218
#> 43 1952-07-01 230
#> 44 1952-08-01 242
#> 45 1952-09-01 209
#> 46 1952-10-01 191
#> 47 1952-11-01 172
#> 48 1952-12-01 194
#> 49 1953-01-01 196
#> 50 1953-02-01 196
#> 51 1953-03-01 236
#> 52 1953-04-01 235
#> 53 1953-05-01 229
#> 54 1953-06-01 243
#> 55 1953-07-01 264
#> 56 1953-08-01 272
#> 57 1953-09-01 237
#> 58 1953-10-01 211
#> 59 1953-11-01 180
#> 60 1953-12-01 201
#> 61 1954-01-01 204
#> 62 1954-02-01 188
#> 63 1954-03-01 235
#> 64 1954-04-01 227
#> 65 1954-05-01 234
#> 66 1954-06-01 264
#> 67 1954-07-01 302
#> 68 1954-08-01 293
#> 69 1954-09-01 259
#> 70 1954-10-01 229
#> 71 1954-11-01 203
#> 72 1954-12-01 229
#> 73 1955-01-01 242
#> 74 1955-02-01 233
#> 75 1955-03-01 267
#> 76 1955-04-01 269
#> 77 1955-05-01 270
#> 78 1955-06-01 315
#> 79 1955-07-01 364
#> 80 1955-08-01 347
#> 81 1955-09-01 312
#> 82 1955-10-01 274
#> 83 1955-11-01 237
#> 84 1955-12-01 278
#> 85 1956-01-01 284
#> 86 1956-02-01 277
#> 87 1956-03-01 317
#> 88 1956-04-01 313
#> 89 1956-05-01 318
#> 90 1956-06-01 374
#> 91 1956-07-01 413
#> 92 1956-08-01 405
#> 93 1956-09-01 355
#> 94 1956-10-01 306
#> 95 1956-11-01 271
#> 96 1956-12-01 306
#> 97 1957-01-01 315
#> 98 1957-02-01 301
#> 99 1957-03-01 356
#> 100 1957-04-01 348
#> 101 1957-05-01 355
#> 102 1957-06-01 422
#> 103 1957-07-01 465
#> 104 1957-08-01 467
#> 105 1957-09-01 404
#> 106 1957-10-01 347
#> 107 1957-11-01 305
#> 108 1957-12-01 336
#> 109 1958-01-01 340
#> 110 1958-02-01 318
#> 111 1958-03-01 362
#> 112 1958-04-01 348
#> 113 1958-05-01 363
#> 114 1958-06-01 435
#> 115 1958-07-01 491
#> 116 1958-08-01 505
#> 117 1958-09-01 404
#> 118 1958-10-01 359
#> 119 1958-11-01 310
#> 120 1958-12-01 337
#> 121 1959-01-01 360
#> 122 1959-02-01 342
#> 123 1959-03-01 406
#> 124 1959-04-01 396
#> 125 1959-05-01 420
#> 126 1959-06-01 472
#> 127 1959-07-01 548
#> 128 1959-08-01 559
#> 129 1959-09-01 463
#> 130 1959-10-01 407
#> 131 1959-11-01 362
#> 132 1959-12-01 405
#> 133 1960-01-01 417
#> 134 1960-02-01 391
#> 135 1960-03-01 419
#> 136 1960-04-01 461
#> 137 1960-05-01 472
#> 138 1960-06-01 535
#> 139 1960-07-01 622
#> 140 1960-08-01 606
#> 141 1960-09-01 508
#> 142 1960-10-01 461
#> 143 1960-11-01 390
#> 144 1960-12-01 432
# and implicit again
ts_na_omit(ts_regular(ts_df(x)))
#> time value
#> 1 1949-01-01 112
#> 2 1949-03-01 132
#> 3 1949-05-01 121
#> 4 1949-06-01 135
#> 5 1949-07-01 148
#> 6 1949-08-01 148
#> 7 1949-09-01 136
#> 8 1949-10-01 119
#> 9 1949-11-01 104
#> 10 1949-12-01 118
#> 11 1950-01-01 115
#> 12 1950-02-01 126
#> 13 1950-03-01 141
#> 14 1950-04-01 135
#> 15 1950-05-01 125
#> 16 1950-06-01 149
#> 17 1950-07-01 170
#> 18 1950-08-01 170
#> 19 1950-09-01 158
#> 20 1950-10-01 133
#> 21 1950-11-01 114
#> 22 1950-12-01 140
#> 23 1951-01-01 145
#> 24 1951-02-01 150
#> 25 1951-03-01 178
#> 26 1951-04-01 163
#> 27 1951-05-01 172
#> 28 1951-06-01 178
#> 29 1951-07-01 199
#> 30 1951-08-01 199
#> 31 1951-09-01 184
#> 32 1951-10-01 162
#> 33 1951-11-01 146
#> 34 1951-12-01 166
#> 35 1952-01-01 171
#> 36 1952-02-01 180
#> 37 1952-03-01 193
#> 38 1952-04-01 181
#> 39 1952-05-01 183
#> 40 1952-06-01 218
#> 41 1952-07-01 230
#> 42 1952-08-01 242
#> 43 1952-09-01 209
#> 44 1952-10-01 191
#> 45 1952-11-01 172
#> 46 1952-12-01 194
#> 47 1953-01-01 196
#> 48 1953-02-01 196
#> 49 1953-03-01 236
#> 50 1953-04-01 235
#> 51 1953-05-01 229
#> 52 1953-06-01 243
#> 53 1953-07-01 264
#> 54 1953-08-01 272
#> 55 1953-09-01 237
#> 56 1953-10-01 211
#> 57 1953-11-01 180
#> 58 1953-12-01 201
#> 59 1954-01-01 204
#> 60 1954-02-01 188
#> 61 1954-03-01 235
#> 62 1954-04-01 227
#> 63 1954-05-01 234
#> 64 1954-06-01 264
#> 65 1954-07-01 302
#> 66 1954-08-01 293
#> 67 1954-09-01 259
#> 68 1954-10-01 229
#> 69 1954-11-01 203
#> 70 1954-12-01 229
#> 71 1955-01-01 242
#> 72 1955-02-01 233
#> 73 1955-03-01 267
#> 74 1955-04-01 269
#> 75 1955-05-01 270
#> 76 1955-06-01 315
#> 77 1955-07-01 364
#> 78 1955-08-01 347
#> 79 1955-09-01 312
#> 80 1955-10-01 274
#> 81 1955-11-01 237
#> 82 1955-12-01 278
#> 83 1956-01-01 284
#> 84 1956-02-01 277
#> 85 1956-03-01 317
#> 86 1956-04-01 313
#> 87 1956-05-01 318
#> 88 1956-06-01 374
#> 89 1956-07-01 413
#> 90 1956-08-01 405
#> 91 1956-09-01 355
#> 92 1956-10-01 306
#> 93 1956-11-01 271
#> 94 1956-12-01 306
#> 95 1957-01-01 315
#> 96 1957-02-01 301
#> 97 1957-03-01 356
#> 98 1957-04-01 348
#> 99 1957-05-01 355
#> 100 1957-06-01 422
#> 101 1957-07-01 465
#> 102 1957-08-01 467
#> 103 1957-09-01 404
#> 104 1957-10-01 347
#> 105 1957-11-01 305
#> 106 1957-12-01 336
#> 107 1958-01-01 340
#> 108 1958-02-01 318
#> 109 1958-03-01 362
#> 110 1958-04-01 348
#> 111 1958-05-01 363
#> 112 1958-06-01 435
#> 113 1958-07-01 491
#> 114 1958-08-01 505
#> 115 1958-09-01 404
#> 116 1958-10-01 359
#> 117 1958-11-01 310
#> 118 1958-12-01 337
#> 119 1959-01-01 360
#> 120 1959-02-01 342
#> 121 1959-03-01 406
#> 122 1959-04-01 396
#> 123 1959-05-01 420
#> 124 1959-06-01 472
#> 125 1959-07-01 548
#> 126 1959-08-01 559
#> 127 1959-09-01 463
#> 128 1959-10-01 407
#> 129 1959-11-01 362
#> 130 1959-12-01 405
#> 131 1960-01-01 417
#> 132 1960-02-01 391
#> 133 1960-03-01 419
#> 134 1960-04-01 461
#> 135 1960-05-01 472
#> 136 1960-06-01 535
#> 137 1960-07-01 622
#> 138 1960-08-01 606
#> 139 1960-09-01 508
#> 140 1960-10-01 461
#> 141 1960-11-01 390
#> 142 1960-12-01 432