BME688 baseline subtraction.
Using the bme688 dev board, I have taken readings for two separate odour sources (class 1, class 2). I also want to take a reading of ambient air and subtract the ambient air gas resistance readings from both class 1 and class 2 as a form of normalisation. I don't want the ambient air readings to be a separate class for the algorithm to discriminate against, as I will be using the bme688 in different environments with very different ambient air composition. Is this approach possible using the BSEC library/Bosch AI studio? 
