updated _gauss_overlap_thresh to 0.75

Author: ryanhammonds

fooof/objs/fit.py

@@ -177,7 +177,7 @@ def __init__(self, peak_width_limits=(0.5, 12.0), max_n_peaks=np.inf, min_peak_h
         self._bw_std_edge = 1.0
         # Degree of overlap between gaussians for one to be dropped
         #   This is defined in units of gaussian standard deviation
-        self._gauss_overlap_thresh = 1.5
+        self._gauss_overlap_thresh = 0.75
         # Parameter bounds for center frequency when fitting gaussians, in terms of +/- std dev
         self._cf_bound = 1.5
         # The maximum number of calls to the curve fitting function
@@ -1029,14 +1029,18 @@ def _drop_peak_overlap(self, guess):
         the lowest height guess guassian is dropped.
         """
 
-        # Sort the peak guesses, so can check overlap of adjacent peaks
+        # Sort the peak guesses by increasing frequency, so adjacenent peaks can
+        #   be compared from right to left.
         guess = sorted(guess, key=lambda x: float(x[0]))
 
         # Calculate standard deviation bounds for checking amount of overlap
+        #   The bounds are the gaussian frequncy +/- gaussian standard deviation
         bounds = [[peak[0] - peak[2] * self._gauss_overlap_thresh,
                    peak[0] + peak[2] * self._gauss_overlap_thresh] for peak in guess]
 
         # Loop through peak bounds, comparing current bound to that of next peak
+        #   If the left peak's upper bound extends pass the right peaks lower bound,
+        #   Then drop the guassian with the lower height.
         drop_inds = []
         for ind, b_0 in enumerate(bounds[:-1]):
             b_1 = bounds[ind + 1]