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.
# returns index of 21 ds_rindex(mtcars$mpg, 21)#> [1] 1 2# returns NULL ds_rindex(mtcars$mpg, 22)#> NULL