Returns index of values.
ds_rindex(data, values)
| data | a numeric vector |
|---|---|
| values | a numeric vector containing the values whose index is returned |
Index of the values in data. In case, data does
not contain index, NULL is returned.
ds_rindex(mtcars$mpg, 21)#> [1] 1 2ds_rindex(mtcars$mpg, 22)#> NULL