python计算ecdf代的函数

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