In some cases, you will want to run a deterministic simulation (i.e., a single realization which does not try to represent the uncertainty in inputs), even though the model contains some Stochastic elements. For these kinds of simulations, it is necessary to specify the value that a Stochastic element takes on during the simulation.
In order to run a deterministic simulation, you must open the Simulation Settings dialog, go to the Monte Carlo tab, and select the Deterministic Simulation radio button.
For each Stochastic, you must then define the Deterministic Value to be used when a deterministic simulation is carried out:
To access this portion of the dialog, you may need to press the More button on the Stochastic dialog.
The default is for the mean (expected) value of the Stochastic to be used as the Deterministic Value. By pressing the Define… button, however, you can specify other values:
The other options are to use the median value, use a specified quantile (e.g., 0.95), or to use a specified value (e.g., 3.7 m).
If you select one of the first three options in the dialog, you can choose to apply the selection to all Stochastics in the model (by checking the Apply to all Stochastic elements box).
If you select the fourth option (a specified value), you must specify the units when you enter the value.
Within the Simulation Settings dialog, when running a deterministic simulation, you can choose to use these individually specified deterministic values, or override them all and use the mean or a specified quantile.
Note: When
you define a specified value, GoldSim remembers it, so that if you switch to a
mean value, a median value or a quantile, and then switch back to a specified
value, GoldSim retains that value (and you do not have to enter it
again).
Note: A specified value can be outside the
defined range of the distribution.
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