Python NSE 代码

Python中计算NSE的代码如下：

import numpy as np

def calculate_nse(obs, sim):
    ave_obs = np.mean(obs)
    numerator = np.sum((obs - sim) ** 2)
    denominator = np.sum((obs - ave_obs) ** 2)
    nse = 1 - numerator / denominator
    return nse