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 (Simulink) 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.