====== Probabilistic simulation ======

Probabilistic simulations are performed by running [[http://en.wikipedia.org/wiki/Monte_Carlo_method|Monte Carlo simulations]], where a selected number of [[Parameter|parameters]] are assigned statistical distributions ([[Probability_density_function|PDFs]]) to account for their uncertainty. Then the model is simulated repeatedly with input parameter values randomly drawn using these distributions.

===== Probabilistic simulations =====

To run probabilistic simulations, you must define settings for the simulation, such as number of iterations, selection of parameters and definition of parameter correlation.

  - Assign [[Probability_density_function|PDFs]] to uncertain parameters.
  - Set [[Probabilistic_settings|probabilistic settings]]
    - Select number of simulations
    - Select sampling scheme
    - Select parameters to include in the analysis
  - Change the **Output option** in [[Simulation_settings|simulation settings]] to **Produce specified output only**.
  - Select **Simulation | Probabilistic** from the simulation menu.
  - Run simulations. See [[Running_simulations|Running simulations]].
  - Analyse results. See [[Results_window#Creating charts and tables|Creating charts and tables]].

===== See also =====

  * [[Probabilistic_settings|Probabilistic settings]]
  * [[Charts_window|Charts window]]
  * [[Tables_window|Tables window]]