functioninitialStateWithXorshift64star

Return an initial state vector for a random number generator (based on xorshift64star algorithm)

Extends from Modelica.Icons.Function (Icon for functions).

Information

Syntax

state = Utilities.initialStateWithXorshift6star(localSeed, globalSeed, nState);

Description

The Xorshift64star random number generator is used to fill a state vector of length nState (nState ≥ 1) with random numbers and return this vector. Arguments localSeed and globalSeed are any Integer numbers (including zero or negative number) that characterize the initial state. If the same localSeed, globalSeed, nState is given, the same state vector is returned.

Example

  parameter Integer localSeed;
  parameter Integer globalSeed;
  Integer state[33];
initial equation
  state = Utilities.initialStateWithXorshift64star(localSeed, globalSeed, size(state,1));

Inputs

TypeNameDefaultDescription
IntegerlocalSeedThe local seed to be used for generating initial states
IntegerglobalSeedThe global seed to be combined with the local seed
IntegernStateThe dimension of the state vector (>= 1)

Outputs

TypeNameDefaultDescription
IntegerstateThe generated initial states

Revisions

Date Description
June 22, 2015
DLR logo Initial version implemented by A. Klöckner, F. v.d. Linden, D. Zimmer, M. Otter.
DLR Institute of System Dynamics and Control