[update] raising PickingFailedException when CF cannot be calculated due to missing signal (too short waveform)

[update] raising PickingFailedException when CF cannot be calculated due to missing signal (too short waveform)

pylot/core/pick/autopick.py

@@ -20,7 +20,7 @@ from pylot.core.pick.charfuns import CharacteristicFunction
 from pylot.core.pick.charfuns import HOScf, AICcf, ARZcf, ARHcf, AR3Ccf
 from pylot.core.pick.picker import AICPicker, PragPicker
 from pylot.core.pick.utils import checksignallength, checkZ4S, earllatepicker, \
-    getSNR, fmpicker, checkPonsets, wadaticheck, get_quality_class
+    getSNR, fmpicker, checkPonsets, wadaticheck, get_quality_class, PickingFailedException, MissingTraceException
 from pylot.core.util.utils import getPatternLine, gen_Pool, \
     get_bool, identifyPhaseID, get_None, correct_iplot
 
@@ -232,20 +232,6 @@ class PickingContainer:
         self.Sflag = 0
 
 
-class MissingTraceException(ValueError):
-    """
-    Used to indicate missing traces in a obspy.core.stream.Stream object
-    """
-    pass
-
-
-class PickingFailedException(Exception):
-    """
-    Raised when picking fails due to missing values etc.
-    """
-    pass
-
-
 class AutopickStation(object):
 
     def __init__(self, wfstream, pickparam, verbose, iplot=0, fig_dict=None, metadata=None, origin=None):

pylot/core/pick/charfuns.py

@@ -20,6 +20,8 @@ import numpy as np
 from scipy import signal
 from obspy.core import Stream
 
+from pylot.core.pick.utils import PickingFailedException
+
 
 class CharacteristicFunction(object):
     """
@@ -488,6 +490,9 @@ class ARHcf(CharacteristicFunction):
         print('Calculating AR-prediction error from both horizontal traces ...')
 
         xnp = self.getDataArray(self.getCut())
+        if len(xnp[0]) == 0:
+            raise PickingFailedException('calcCF: Found empty data trace for cut times. Return')
+
         n0 = np.isnan(xnp[0].data)
         if len(n0) > 1:
             xnp[0].data[n0] = 0

pylot/core/pick/utils.py

@@ -890,6 +890,8 @@ def checksignallength(X, pick, minsiglength, pickparams, iplot=0, fig=None, line
                 input()
             except SyntaxError:
                 pass
+            except EOFError:
+                pass
             plt.close(fig)
 
     return returnflag
@@ -1516,3 +1518,17 @@ if __name__ == '__main__':
     import doctest
 
     doctest.testmod()
+
+
+class PickingFailedException(Exception):
+    """
+    Raised when picking fails due to missing values etc.
+    """
+    pass
+
+
+class MissingTraceException(ValueError):
+    """
+    Used to indicate missing traces in a obspy.core.stream.Stream object
+    """
+    pass