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IHmethod log-of-zero avoidance and log lines may have been out of order (V3) #14

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IHmethod log-of-zero avoidance and log lines may have been out of order (V3) #14

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5 changes: 3 additions & 2 deletions pydrograph/baseflow.py
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Original file line number Diff line number Diff line change
Expand Up @@ -203,8 +203,9 @@ def IHmethod(Qseries, block_length=5, tp=0.9, interp_semilog=True, freq='D', lim
# interpolate between baseflow ordinates
if interp_semilog:
iszero = Q.ordinate.values == 0
logQ = np.log10(Q.ordinate)
logQ[iszero] = -2
logQ = Q.ordinate.copy()
logQ[iszero] = 0.01
logQ = np.log10(logQ)
QB = np.power(10.0, logQ.interpolate(limit=limit).values)
else:
QB = Q.ordinate.interpolate(limit=limit).values
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