Saving Results

Before you run a model, you select the results that you wish to save. With regard to saving results, there are two things that you must specify:

• Which specific results do you want to save (i.e., which outputs of which elements)?
• When do you want to save these results?

Within GoldSim, there are two fundamental types of results:

• Final Value Results: These allow you to display distributions, multi-variate results (e.g., scatter plots), bar charts, column charts and pie charts (and the associated tables for these results) at specified Capture Times User-defined points in time during a simulation at which “Final Value” results are captured for result display. The final time point in the simulation is always included as a Capture Time, but additional times can be added. in a simulation. By default, “Final Value” type results are only available at the final Capture Time in the simulation (hence, their name). In some cases, however, you may also want to view “snapshots” of results at other points in time (other than the end of the simulation). GoldSim facilitates this by allowing you to create other Capture Times (in addition to the default Capture Time at the end of the simulation) at which these results are also made available.

• Time History Results: These are saved at selected timesteps, and allow you to display how an output changes as a function of time.

All element property dialogs have check boxes (at the bottom of the dialog) to specify whether output(s) of the element are to be saved. You can save the Final Values (the values at the end of each realization A single model run within a Monte Carlo simulation. It represents one possible path the system could follow through time. in the simulation) and/or Time History (the value at selected timesteps throughout the simulation).

By default, when you create a new scalar An output consisting of a single value or condition. element, the Save Results checkboxes will be checked (on). For array A collection of variables that share common output attributes and can be manipulated in GoldSim elements or input expressions. elements, the Time History checkbox defaults off.

The Final Values checkbox always controls whether Final Value results are saved. However, the Time History checkbox can be overridden. In particular, it is always applied for single realization runs, but is overridden for multiple realization runs. In particular, Time History results for multiple realization runs are only saved for outputs that are connected to Result elements.

When Time History results are saved, by default GoldSim saves the values of outputs at every Basic Step (and Reporting Period). You can instruct GoldSim to only save results at selected timesteps (e.g., every tenth Basic Step) when defining timestepping options in the Simulation Settings dialog.