Hi, >How is the "null" consideration related to the functionality of performing an average, and other operations?
I just don't know why they haven't implement anything like that for BigDecimal or BigInteger, especially it's for my strange because BigDecimal is a convenient type for financial calculations. > Which "package" I was referring to your words: "I'm wary of dropping this in "Commons Statistics" without a broader view of the design of a package where it would perhaps fit with similar functionality" >How will a user get e.g. the variance too? I didn't plan that functionality Regards