Using the Simulation Data Inspector to inspect and compare data after converting your floating-point model to fixed point facilitates tracking numerical error propagation.
Use the Simulation Data Inspector to:
Plot multiple signals in one or more axes
Compare a signal in different runs
Compare all logged signal data from different runs
Export signal logging results to a MAT-file
Specify tolerances for signal comparison
Create a report of the current view and data in the Simulation Data Inspector
The Fixed-Point Tool uses the Simulation Data Inspector tool plotting capabilities that enable you to plot signals for graphical analysis. The tool can access signal data that resides in the MATLAB® workspace, allowing you to plot simulation results associated with:
Scope blocks whose Save data to workspace parameter is selected
To Workspace blocks
Root-level Outport blocks, when the Output check box on the Data Import/Export pane of the Configuration Parameters dialog box is selected
Logged signal data
Tip The Contents pane of the Fixed-Point Tool displays an antenna icon next to items that you can plot.