buy_or_sale.py 文件源码

def get_bbands(sorted_data):
    close,high,low,ma5,ma10,ma20 = get_case_data(sorted_data)
    upperband, middleband, lowerband = ta.BBANDS(close, timeperiod=5, nbdevup=2, nbdevdn=2, matype=0)
    #??%b???????????
    operator = ''
#    score = 0
    index_b = (close[-1]-lowerband[-1]) / (upperband[-1]-lowerband[-1])
#    print "%b is : " + str(index_b)
    if index_b > 1:
        operator += 'S%'
#        score -= 10
    elif index_b <= 0 :
        operator += 'B%'
#        score += 10

    #??????????????
    up = upperband[-1] - upperband[-2]
    down = lowerband[-2] -lowerband[-1]
    if up > 0 and down > 0:
        if up > down:
            operator += 'BO'
        elif up < down:
            operator += 'SO'

    if ma5[-1] > ma10[-1] and ma10[-1] > ma20[-1]:
        if upperband[-1] < upperband[-2]:
            operator += 'S!'
    return (operator,index_b)
#initial the date