backward_3p_ma = x.rolling(window=3).mean() >>> backward_3p_ma 0 NaN 1 NaN 2 2.0 3 3.0 4 4.0 5 5.0 6 6.0 7 7.0 8 8.0 9 9.0 10 10.0 11 11.0 ...
確定! 回上一頁