PANDA COLLING WIND
#s can be a series or a dataFrame
for window in s.rolling(window=2): #windows size 2
print(window)
pythonized
#s can be a series or a dataFrame
for window in s.rolling(window=2): #windows size 2
print(window)>>> df.rolling(2, min_periods=1).sum()
B
0 0.0
1 1.0
2 3.0
3 2.0
4 4.0