-- | quantiles, with breakdown points 25%, 50%, and 25% respectively
q1, q2, q3 :: (Robust l, Fractional a, Ord a) => l a a
q1 = quantile 0.25
q1, q2, q3 :: (Robust l, Fractional a, Ord a) => l a a
q1 = quantile 0.25
q1 = quantile 0.25