Fixed bug where cached parameters were stored as class variables

and not being overridden

eqsig/single.py

@@ -347,26 +347,6 @@ def running_average(self, width=1):
 
 
 class AccSignal(Signal):
-    _cached_response_spectra = False
-    _cached_disp_and_velo = False
-    _cached_xi = 0.05
-    _cached_params = {}
-    _s_a = None
-    _s_v = None
-    _s_d = None
-    t_b01 = 0.0
-    t_b05 = 0.0
-    t_b10 = 0.0
-    a_rms01 = 0.0
-    a_rms05 = 0.0
-    a_rms10 = 0.0
-    t_595 = 0.0  # significant duration
-    sd_start = 0.0  # start time of significant duration
-    sd_end = 0.0  # end time of significant duration
-    arias_intensity_series = None
-    arias_intensity = 0.0
-    cav_series = None
-    cav = 0.0
 
     def __init__(self, values, dt, label='m1', smooth_freq_range=(0.1, 30), verbose=0, response_times=(0.1, 5), ccbox=0):
         """
@@ -395,6 +375,13 @@ def __init__(self, values, dt, label='m1', smooth_freq_range=(0.1, 30), verbose=
             self.response_times = np.array(response_times)
         self._velocity = np.zeros(self.npts)
         self._displacement = np.zeros(self.npts)
+        self._cached_params = {}
+        self._cached_response_spectra = False
+        self._cached_disp_and_velo = False
+        self._cached_xi = 0.05
+        self._s_a = None
+        self._s_v = None
+        self._s_d = None
 
     def clear_cache(self):
         self._cached_smooth_fa = False

tests/test_acc_signal.py

@@ -136,6 +136,15 @@ def test_duration_stats(asig_t1):
     assert np.isclose(eqsig.im.calc_brac_dur(asig_t1, 0.05), 15.41)  # eqsig==0.5.0
     assert np.isclose(eqsig.im.calc_brac_dur(asig_t1, 0.1), 8.41)  # eqsig==0.5.0
 
+
+def test_variables_are_over_writable():
+    a1 = np.random.rand(100)
+    asig1 = eqsig.AccSignal(a1, 1)
+    asig2 = eqsig.AccSignal(a1 * 2, 1)
+    assert asig2.pga != asig1.pga
+
 # 
 # if __name__ == '__main__':
 #     show_response_spectra_at_high_frequencies()
+
+print(np.random.rand(100))