Once you get the "cvdata" object (e.g., from merged test results), you can extract various coverage metrics such as decision, condition, MCDC, etc., using Simulink Coverage API functions.
For example:
Use the "decisioninfo" function to retrieve decision coverage data:
decisionCov = decisioninfo(cvdo, 'myModel');
Please refer to the following MathWorks documentation links for more details on how to use these functions:
Relational Boundary Coverage: https://www.mathworks.com/help/slcoverage/ref/relationalboundaryinfo.html
Hope this helps!
