fa.gists.surge_calc(data.index, data['21mm'], drain)
AttributeError Traceback (most recent call last)
in ()
----> 1 fa.gists.surge_calc(data.index, data['21mm'], drain)
C:\Apps\anaconda\lib\site-packages\pyfas\gists.py in surge_calc(time_series, liq_flowrate, drain)
6 def surge_calc(time_series, liq_flowrate, drain):
7 dt = np.diff(time_series)
----> 8 dt.units = pq.h
9 surge = (np.convolve(liq_flowrate, 1)[1:]*liq_flowrate.units-drain)*dt
10 surge.base[surge < 0] = 0
AttributeError: 'numpy.ndarray' object has no attribute 'units'
