LINEAR

Linear interpolation, the default method in most software (HF7, R type 7).

Uses position h = (n - 1)*p + 1 and linear interpolation. This is the default in R, S, NumPy, Pandas, and kstats. Assigns a probability of (i - 1) / (n - 1) to each order statistic, placing the minimum at p = 0 and the maximum at p = 1.