unit test unsucessfully being done

Scripts/generate_signals.py

@@ -422,6 +422,10 @@ class SignalGenerator():
         # else:
         #     base_unix = rhist.start_unix.min()
         base_unix = curr_unix - self.subtractor // 2
+        abs_diff = (self.rhist['start_unix'] - base_unix).abs()
+        closest_index = abs_diff.idxmin()
+        base_unix = self.rhist.loc[closest_index, 'start_unix']
+
         D_n = curr_unix - base_unix
         S_n_durs = rhist[(rhist.start_unix > base_unix) & (rhist.start_unix <= curr_unix)] \
             [[f'dura_{alph}{j}' for alph in ['A', 'B'] for j in range(1,9)]]