原因:数字太小的原因,溢出,计算过程中出现-inf,再做其他运算,结果还是-inf。当概率很小时,取对数后结果趋于负无穷大 解决:改变浮点数的精度 参考:(51条消息) RuntimeWarning: divide by zero encountered in log错误解决_旅途中的宽~的博客-CSDN博客
RuntimeWarning: divide by zero encountered in log 1. 这种输出警告信息的行为有时候会干扰我们对程序输出结果的观察,尤其是在大规模数据分析和科学计算中。因此,有时候我们希望禁止Python打印输出警告信息。 如何禁止打印输出警告信息 Python提供了warnings模块,可以用于控制警告信息的打印输出。我们可以使用以下代码示例...
Output array : [ 1. 9. inf 4.2 3.83333333] RuntimeWarning:divideby zero encountered in true_divide out = np.power(arr1, arr2) 参考文献: https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.divide.html 。
isnan(1.0/0.0) : False ...: RuntimeWarning: divide by zero encounteredintrue_divide print ("isnan(-1.0/0.0) :", np.isnan(np.true_divide(-1.0,0.0))) isnan(-1.0/0.0) : False ...: RuntimeWarning: invalid value encounteredinsqrt print ("isnan(sqrt(-1.0)):", np.isnan(np.sqrt...
__main__:1: RuntimeWarning: divide by zero encountered in reciprocal [ 4. 0.7518797 1. inf 0.01 ] b数组: [100] 对b数组求倒数: [0] 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 3. numpy.power() 该函数将 a 数组中的元素作为底数,把 b 数组中与 a 相对应的元素作幂 ,最后...
# 直接a2除以a3,会爆警告:RuntimeWarning: divide by zero encountered in divide a2 / a3 print("借助np.where进行除数为0的位置筛选结果:") print(np.where(a3 != 0, a3/a2, 0)) 4.5 np.array_split(array, int, axis=0/1) 将数组进行切分,切成int份,返回一个列表,列表中为int份数组。axis=0代...
In NumPy, the numpy.divide() function is used to divide the elements of one array by the elements of another array. It performs element-wise division,
(t5/0) # RuntimeWarning: divide by zero encountered in true_divide # RuntimeWarning: invalid value encountered in true_divide # [nan inf inf inf inf inf inf inf inf inf inf inf inf inf inf inf inf inf # inf inf inf inf inf inf] # nan:not a number不是一个数字 ,inf:infinity...
divide by zero encountered in divide from IPython.kernel.zmq import kernelapp as app c:\Miniconda\lib\site-packages\IPython\kernel_main_.py:2: RuntimeWarning: invalid value encountered in divide from IPython.kernel.zmq import kernelapp as app Out[10]: array([ nan, inf, inf, inf, inf])...
{result}")except FileNotFoundError:print("The file 'data.csv' was not found.")except IndexError:print("Invalid data format in the CSV file.")except ZeroDivisionError:print("Cannot divide by zero.")except ValueError:print("Invalid value encountered during calculations.")except Exceptionase:print...