You are here: Running the Model > Run-Time Menus & Controls > SimRunner > Stage one: Pre-Analysis
With the model built, the input factors selected, and an objective function defined, you are ready to conduct a Pre-Analysis. Also known as Statistical Advantage, the Pre-Analysis runs several tests to identify the initial bias (warm-up period), determine appropriate run-length to reach steady-state, find the number of replications necessary to ensure that each event occurs at least once, and locate the model averages.