docs: def ckMAO(self,data,s=5,pm=False):
      """判斷正負乖離位置
         s = 取樣判斷區間
         pm = True（正）/False（負） 乖離
         return [T/F, 第幾個轉折日, 乖離值]
      """
      c = data[-s:]
  
      if pm:
        ckvalue = max(c)
        preckvalue = max(c) > 0
      else:
        ckvalue = min(c)
        preckvalue = max(c) < 0
  
      return [s - c.index(ckvalue) < 4 and c.index(ckvalue) != s-1 and preckvalue, s - c.index(ckvalue) - 1, ckvalue]