Set random number generator
The RandomState property sets the random
number generator for the stochastic solvers. It is a property of the SolverOptions object. SolverOptions is
a property of the configset object.
SimBiology® software uses a pseudorandom number generator.
The sequence of numbers generated is determined by the state of the
generator, which can be specified by the integer RandomState.
If RandomState is set to integer J,
the random number generator is initialized to its Jth state.
The random number generator can generate all the floating-point numbers
in the closed interval [2^(-53), 1-2^(-53)]. Theoretically,
it can generate over 2^1492 values before repeating
itself. But for a given state, the sequence of numbers generated will
be the same. To change the sequence, change RandomState. SimBiology software
resets the state at startup. The default value of RandomState is [].
| Applies to | Objects: SolverOptions for SSA,
expltau, impltau |
| Data type | int |
| Data values | Default is [] (empty). |
| Access | Read/write |
This example shows how to change RandomState settings.
Retrieve the configset object from
the modelObj and change the SolverType to expltau.
modelObj = sbiomodel('cell'); configsetObj = getconfigset(modelObj); set(configsetObj, 'SolverType', 'expltau')
Change the Randomstate to 5.
set(configsetObj.SolverOptions, 'RandomState', 5); get(configsetObj.SolverOptions, 'RandomState')) ans = 5