: must contain values which are used to obtain an initial state for the generator selected by the argument igen
. The treatment of the array iseed
differs depending on the value of igen
input. As a result, the requirements for meaningful values of the elements of iseed
also depend on igen
; these requirements are as follows:
- if , only need be set to any non-negative integer;
- otherwise, all elements of iseed must be set and should be positive and are recommended to be at least five digits in length.