statistic_functions.py 文件源码

def MEDIAN_LOW(df, n, price='Close'):
    """
    Low median of data
    """
    median_low_list = []
    i = 0
    while i < len(df[price]):
        if i + 1 < n:
            median_low = float('NaN')
        else:
            start = i + 1 - n
            end = i + 1
            median_low = statistics.median_low(df[price][start:end])
        median_low_list.append(median_low)
        i += 1
    return median_low_list