ta.py 文件源码

def add_ROCP(self, timeperiod=10,
             type='line', color='tertiary', **kwargs):
    """Rate of Change (Percentage)."""

    if not self.has_close:
        raise Exception()

    utils.kwargs_check(kwargs, VALID_TA_KWARGS)
    if 'kind' in kwargs:
        type = kwargs['kind']

    name = 'ROCP({})'.format(str(timeperiod))
    self.sec[name] = dict(type=type, color=color)
    self.ind[name] = talib.ROCP(self.df[self.cl].values,
                                timeperiod)