In R2019a the Diagnostic Feature Explorer addon has been replaced by the Diagnostic Feature Designer Tool that ships with the Predictive Maintenance Toolbox.

With the Diagnostic Feature Explorer you can interactively:
- Explore your data ensemble visually by plotting and interacting with your ensemble members together.
- Convert your data into different forms for further exploration. For example, you can create a power spectrum of your signal to evaluate its frequency-domain behavior. Or you can perform time-synchronous averaging, which filters out any noise or disturbance that is not associated with your machine rotation.
- Generate features of various types, and plot histograms that visualize their effectiveness in separating data from systems with different conditions.
- Rank the features you have generated using ranking algorithms that use specific criteria to establish which features are most effective.