Find the proportion of values of `x`

that are distinct.

## Arguments

- x
A vector to check.

## Value

The ratio of distinct values `x`

to total values of `x`

.

## Details

`length(unique(x))/length(x)`

## See also

Other counting wrappers:
`count_diff()`

,
`count_in()`

,
`count_na()`

,
`count_out()`

,
`na_in()`

,
`na_out()`

,
`na_rep()`

,
`prop_in()`

,
`prop_na()`

,
`prop_out()`

,
`what_in()`

,
`what_out()`

## Examples

```
prop_distinct(c("VT", "VT", NA, "ME"))
#> [1] 0.75
```