rng
Selection of a random number generator
Specification
Alias: None
Arguments: None
Default: Mersenne twister ( mt19937 )
Child Keywords:
Required/Optional |
Description of Group |
Dakota Keyword |
Dakota Keyword Description |
---|---|---|---|
Required (Choose One) |
RNG Algorithm |
Generates random numbers using the Mersenne twister |
|
Generates pseudo-random numbers using the Pecos package |
Description
The rng
keyword is used to indicate a choice of random number generator.
Default Behavior
If specified, the rng
keyword must be accompanied by either
rnum2
(pseudo-random numbers) or mt19937
(random numbers generated
by the Mersenne twister). Otherwise, mt19937
, the Mersenne twister
is used by default.
Usage Tips
The default is recommended, as the Mersenne twister is a higher quality random number generator.
Examples
method
sampling
sample_type lhs
samples = 10
seed = 98765
rng rnum2