metric.Result

To open the project, enter this command.

openExample('simulink/VisualizeModelReferenceHierarchiesExample')

The project contains sldemo_mdlref_depgraph, which is the top-level model in a model reference hierarchy. This model reference hierarchy represents one design unit.

Create a metric.Engine object.

metric_engine = metric.Engine();

Update the trace information for metric_engine to reflect any pending artifact changes.

updateArtifacts(metric_engine)

Create an array of metric identifiers for the metrics you want to collect. For this example, create a list of all available design cost estimation metrics.

metric_Ids = getAvailableMetricIds(metric_engine,...
    'App','DesignCostEstimation')

metric_Ids = 

  1×2 string array

    "DataSegmentEstimate"    "OperatorCount"

To collect results, execute the metric engine.

execute(metric_engine,metric_Ids);

Because the engine was executed without the argument for ArtifactScope, the engine collects metrics for the sldemo_mdlref_depgraph model reference hierarchy.

Use the getMetrics function to access the high-level design cost metric results.

results_OperatorCount = getMetrics(metric_engine,'OperatorCount');
results_DataSegmentEstimate = getMetrics(metric_engine,'DataSegmentEstimate');

disp(['Unit:  ', results_OperatorCount.Artifacts.Name])
disp(['Total Cost:  ', num2str(results_OperatorCount.Value)])

disp(['Unit:  ', results_DataSegmentEstimate.Artifacts.Name])
disp(['Data Segment Size (bytes):  ', num2str(results_DataSegmentEstimate.Value)])

Unit:  sldemo_mdlref_depgraph
Total Cost:  57

Unit:  sldemo_mdlref_depgraph
Data Segment Size (bytes):  228

The results show that for the sldemo_mdlref_depgraph model, the estimated total cost of the design is 57 and the estimated data segment size is 228 bytes.

Use the generateReport function to access detailed metric results in a pdf report. Name the report 'MetricResultsReport.pdf'.

reportLocation = fullfile(pwd,'MetricResultsReport.pdf');
generateReport(metric_engine,...
    'App','DesignCostEstimation',...
    'Type','pdf',...
    'Location',reportLocation);

The report contains a detailed breakdown of the operator count and data segment estimate metric results.