Order
The order of polynomial to be used when calculating the moment. The following options are valid:
| Order | Description | 
|---|---|
| 2 | Average over i (x(i) - Mean)^2   | 
| 3 | Average over i (x(i) - Mean)^3  | 
| 4 | Average over i (x(i) - Mean)^4  | 
| 5 | Average over i (x(i) - Mean)^5  |