Bowley (quartile) skewness coefficient of a list under optional Quantile parameters (or columnwise for a matrix)
QuartileSkewness[data]
QuartileSkewness[data, {{a, b}, {c, d}}]
QuartileSkewness[dist]
QuartileSkewness[{1, 3, 3, 2, 5, 6}]
→ 1/3QuartileSkewness[ExponentialDistribution[λ]]
→ ((-2*Log[2])/λ + Log[4]/λ + Log[4/3]/λ)/(Log[4]/λ - Log[4/3]/λ)QuartileSkewness[{1, 3, 2, 7}]
→ 3/7