In this example, a time series output is integrated over the period of record (Simulation Duration) to generate monthly and annual sums. The results are stored in a matrix ('Sum_Matrix') in which the rows correspond to years and the columns correspond to months. In this format, it is a simple matter to calculate statistics on the rows or columns using GoldSim's built-in array functions such as meanr(), meanc(), sumr(), sumc(), etc. For example, see results for 'Monthly_Averages' and 'Annual_Sums'. Sometimes, this approach is needed instead of GoldSim's built-in reporting periods because the summary values must be used as inputs to other expressions in the model.
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