3 examples of 'pandas sum' in Python

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89def SUM(Series, N):
90 return pd.Series.rolling(Series, N).sum()
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54def sum(self):
55 def sum(scol):
56 return F.when(
57 F.row_number().over(self._unbounded_window) >= self._min_periods,
58 F.sum(scol).over(self._window)
59 ).otherwise(F.lit(None))
60
61 return self._apply_as_series_or_frame(sum)
103def SUM(df, n, price='Close'):
104 """
105 Summation
106 """
107 sum_list = []
108 i = 0
109 while i < len(df[price]):
110 if i + 1 < n:
111 SUM = float('NaN')
112 else:
113 start = i + 1 - n
114 end = i + 1
115 SUM = sum(df[price][start:end])
116 sum_list.append(SUM)
117 i += 1
118 return sum_list

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