Copy a Simulation Data Inspector run
copies the run corresponding to
newRunID = Simulink.sdi.copyRun(
runID and returns the run ID for
the new run. The new run includes all the simulation data and metadata from the
original run. You can modify the copy of the run by adding or deleting signals and
metadata while still retaining the original run.
copies the run corresponding to
signalIDs] = Simulink.sdi.copyRun(
runID and returns the signal IDs
for the signals in the new run along with its run ID and index in the Simulation
Data Inspector repository. The new run includes all the simulation data and metadata
from the original run.
Compare a Subset of Signals
This example shows how to use
Simulink.sdi.deleteSignal to create a copy of a run that contains a subset of the signals from the original run. You can use the copy to analyze and run comparisons on a subset of signals while still holding onto the original run that has all of the signals. For example, the model
sldemo_fuelsys is configured to log ten signals. To compare the system's responses to different types of failures, you don't need to run the comparison on all of the logged signals. Deleting signals that do not represent the system's response before running the comparison saves processing time and simplifies the view of the results.
Load the model
sldemo_fuelsys and run simulations to create runs in the Simulation Data Inspector. The first run simulates a failure of the throttle angle sensor, and the second run simulates a failure of the exhaust gas oxygen sensor.
load_system('sldemo_fuelsys') modelWorkspace = get_param('sldemo_fuelsys','modelworkspace'); modelWorkspace.assignin('throttle_sw',0) modelWorkspace.assignin('ego_sw',1) sim('sldemo_fuelsys') modelWorkspace.assignin('throttle_sw',1) modelWorkspace.assignin('ego_sw',0) sim('sldemo_fuelsys')
Copy the Run
Use the Simulation Data Inspector's programmatic interface to get
Simulink.sdi.Run objects for the simulations, and then create copies of the runs.
% Get runs runIDs = Simulink.sdi.getAllRunIDs; runID1 = runIDs(end-1); runID2 = runIDs(end); run1 = Simulink.sdi.getRun(runID1); run2 = Simulink.sdi.getRun(runID2); % Create a copy of each run, truncRun [truncRun1,runIndex1,signalIDs1] = Simulink.sdi.copyRun(runID1); [truncRun2,runIndex2,signalIDs2] = Simulink.sdi.copyRun(runID2);
Delete Signals in Run Copy
sldemo_fuelsys model is configured to log the values of the fault switches along with several signals representing the system's response. When you compare the system's response when a throttle angle sensor fails to its response when an exhaust gas oxygen sensor fails, comparing the fault switch states does not provide new information. Therefore, delete the switch signals before running the comparison to eliminate unnecessary computations.
Simulink.sdi.deleteSignal(signalIDs1(1)) Simulink.sdi.deleteSignal(signalIDs1(3)) Simulink.sdi.deleteSignal(signalIDs1(5)) Simulink.sdi.deleteSignal(signalIDs1(8)) Simulink.sdi.deleteSignal(signalIDs2(1)) Simulink.sdi.deleteSignal(signalIDs2(3)) Simulink.sdi.deleteSignal(signalIDs2(5)) Simulink.sdi.deleteSignal(signalIDs2(8))
Compare Truncated Runs
You can use the truncated runs you created with
Simulink.sdi.deleteSignal to perform a comparison of the system's response to different types of failures. Then, open the Simulation Data Inspector to view the comparison results.
truncRunDiff = Simulink.sdi.compareRuns(truncRun1,truncRun2); Simulink.sdi.view
newRunID — Run ID for the copy
Run ID for the copy of the run.
runIndex — Run index for the copy
Index of the copy in the Simulation Data Inspector repository.
signalIDs — Numeric identifiers for the signals in the copy
Matrix containing the signal IDs for the copies of signals created in the copy of the run.