Function std_dev::percentile::percentile

pub fn percentile<T: Clone + Ord>(
    values: &mut [T],
    target: impl OrderedListIndex,
    pivot_fn: &mut impl FnMut(&mut [T]) -> Cow<'_, T>
) -> MeanValue<T>

quickselect algorithm

Consider using percentile_rand or median. See percentile_by for support for a custom comparator function.

pivot_fn must return a value from the supplied slice.