Determination of the number of intervals (bins)
Intervals are of equal width between the maximum and minimum values
Alternative approaches to determine the number of intervals (K)
K = 1 + 3.3 log (n) (from Haan, 1977)
K = 5 log (n) (from Bedient and Huber, 1992)
K = round { (Xmax - Xmin) / (3.49Sn-1/3) }
- where S is the sample standard deviation
- n is the sample size