Fig. 3

Illustration of (a) mean absolute error (dB) vs baseline threshold sensitivity (RF regressor). The blue bars represent the mean value. (b) Predicted pointwise threshold sensitivity (dB) vs actual baseline threshold sensitivity values (dB) (RF regressor). The box plots represent the range across the median. (c) Counts of threshold sensitivity (dB) values in the original data. (d) Stepwise prediction report of original data (RF regressor). (e) Counts of threshold sensitivity (dB) values after normalising 0–14 dB to 14 dB. (f) Stepwise prediction report after normalising (RF regressor).