empirical cumulative distribution function(ECDF) 经验累积分布函数
def ecdf(data): """Compute ECDF for a one-dimensional array of measurements.""" # Number of data points: n n = len(data) # x-data for the ECDF: x x = np.sort(data) # y-data for the ECDF: y y = np.arange(1, n+1) / n #return x, y return x, y
原文：https://www.cnblogs.com/wbloger/p/9880158.html