Multirun Output

Running a model as a multirun will return results in a RunResult object.

RunResult objects store the aggregated results for each step as an Apache Commons DescriptiveStatistics object. This can be used to extract the aggregated result for individual outputs/variables, as a VariableResult object.

RunResult can return the full list of outputs/variables that have been reported, with RunResult#listEntries.

/** Model output
 * {
 *  "output1": ...,
 *  "accumulatorOutput": 
 *    {
 *      "value": ...,
 *      "count" ...,
 *      "mean" ...    
 *    }
 * }
 */
     
 VariableResult outputResult = runResult.get("output1")
 VariableResult accumulatorResult = runResult.get("accumulatorOutput.value")

The VariableResult can then be used to get the specific DescriptiveStatistics for any step, or merge them together and give a single statistics object for the whole run, across all steps.

DescriptiveStatistics outputStatsStep1 = outputResult.getStatsAtStep(1);
DescriptiveStatistics outputStats = outputResult.getAggregatedStats();

More information on using the Apache Commons DescriptiveStatistics returned can be found on their documentation page

http://commons.apache.org/proper/commons-math/javadocs/api-3.3/org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html