pure functionrandom

Returns a uniform random number with the xorshift1024* algorithm

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

Information

Syntax

(r, stateOut) = Xorshift128plus.random(stateIn);

Description

Returns a uniform random number in the range 0 < random ≤ 1 with the xorshift1024* algorithm. Input argument stateIn is the state vector of the previous call. Output argument stateOut is the updated state vector. If the function is called with identical stateIn vectors, exactly the same random number r is returned.

Example

  parameter Integer localSeed;
  parameter Integer globalSeed;
  Real r;
  Integer state[Xorshift1024star.nState];
initial equation
  state = initialState(localSeed, globalSeed);
equation
  when sample(0,0.1) then
    (r, state) = random(pre(state));
  end when;

See also

Random.Generators.Xorshift1024star.initialState.

Inputs

TypeNameDefaultDescription
Integer[nState]stateInThe internal states for the random number generator

Outputs

TypeNameDefaultDescription
RealresultA random number with a uniform distribution on the interval (0,1]
Integer[nState]stateOutThe new internal states of the random number generator

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