print('is exist nan: ', end='')
print(np.isnan(x).any())
# 查找位置
nan_inx = np.where(np.isnan(x))
print(nan_inx)
# 替换
x[np.isnan(x)]=0.00001
print('is exist nan: ', end='')
print(np.isnan(x).any())
print('is exist nan: ', end='')
print(np.isnan(x).any())
# 查找位置
nan_inx = np.where(np.isnan(x))
print(nan_inx)
# 替换
x[np.isnan(x)]=0.00001
print('is exist nan: ', end='')
print(np.isnan(x).any())
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