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[update] improved calculation of smoothed AIC. Old code always created an artificial value and a np.nan at the array start

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Marcel Paffrath 2024-06-05 14:22:45 +02:00
parent 5c7f0b56eb
commit 47205ca493
1 changed files with 4 additions and 2 deletions
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6
pylot/core/pick/picker.py
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@ -178,7 +178,9 @@ class AICPicker(AutoPicker):
aic = tap * self.cf + max(abs(self.cf))
# smooth AIC-CF
ismooth = int(round(self.Tsmooth / self.dt))
aicsmooth = np.zeros(len(aic))
# MP MP better start with original data than zeros if array shall be smoothed, created artificial value before
# when starting with i in range(1...) loop below and subtracting offset afterwards
aicsmooth = np.copy(aic)
if len(aic) < ismooth:
print('AICPicker: Tsmooth larger than CF!')
return
@ -188,7 +190,7 @@ class AICPicker(AutoPicker):
ii1 = i - ismooth
aicsmooth[i] = aicsmooth[i - 1] + (aic[i] - aic[ii1]) / ismooth
else:
aicsmooth[i] = np.mean(aic[1: i])
aicsmooth[i] = np.mean(aic[0: i]) # MP MP created np.nan for i=1
# remove offset in AIC function
offset = abs(min(aic) - min(aicsmooth))
aicsmooth = aicsmooth - offset