The optimizer log is used to log the results of running optimizations. It will open after you have started the optimization and remain on top of the main Stella window until you close it.
You can also open the log using the Optimizer Log item on the Window Menu.
Note The contents of the optimization log are discarded when you close the model.
2018-... specifies which optimization run the log is currently displaying. If you have made multiple optimizations each will be available via this dropdown box. When a new optimization is made it will be placed in the window and the dropdown selection updated.
Show All, if checked, will display the results for all optimizations as a single scrollable list. This can be useful when copying the log to another location.
Copy to Clipboard will copy the contents of the logs currently being displayed to the clipboard so you can paste it in other applications.
Remove will remove the currently displayed log contents and show the most recently generated log that has not been removed, or nothing if no other log results remain.
Remove All will remove all log results, leaving an empty log.
The content of the log varies depending on the type of optimization being done and the parameter selections. It starts with information about the optimization being done such as:
Since each method has different parameters those will also vary depending on the method.
The log next lists the parameters involved in the search:
Then the log will display information about the result of running the optimization, in some cases with intermediate results displayed.
The payoff value (or values) are displayed in the results after the parameter values which give the best, or non-dominated, results.
If you are performing Calibration and have specified that confidence intervals should be computed this will be displayed in a separate table:
Where Lower is the lower bound, Value is the computed optimal value, and Upper is the upper bound at the specified tolerance.