Sensor Grouping about pysensors

[briandesilva]

Unfortunately we don't currently have any built-in methods with the functionality you're suggesting. I'm also unaware of any functions for grouping sensors. I think your best bet is probably to implement a custom method. You could write a function that maps from the expanded sensor index (0 to 1999) to the original sensor index (0 to 19). Then you could apply this function to selected_sensors. A few ideas for how to proceed from there:

• Pick the first k unique sensors to appear
• Of the top n features, choose the k which appear most often
• Use the individual sensor "saliences" (from the sensor_coef_ attribute) to help decide which sensors to use, e.g. sum up the saliences across features for each sensor and select the k sensors with the highest scores. See the update_sensors source code for examples of how to work with sensor_coef_.