Python RuntimeWarning:文本分类的true_divide中遇到无效值

我正在计算一个数组给出的概率分布，遇到了这个错误

C:\Users\malsa876\PycharmProjects\ReqPrioritization\Semi_EM_NB.py:241: RuntimeWarning: invalid value encountered in true_divide
  proba_array = np.true_divide(proba_array_unormalized, np.sum(proba_array_unormalized, axis=1)[:, np.newaxis])

total likelihood: -1053924.5147916302
total likelihood: -1054903.0540410974
total likelihood: -1058234.6120591105
total likelihood: -1059247.4669063047
total likelihood: -1063169.2473161623
total likelihood: -1068871.708044591
total likelihood: -1076802.3646161058
total likelihood: -1084315.921876911
total likelihood: -1086195.0970660546
total likelihood: -1087372.3810061032
total likelihood: -1087940.417901436
total likelihood: -1087940.417901436
stopping time

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您是否已经看过或尝试过其中的建议？如果有帮助的话？你是否已经看过或尝试过其中的建议？如果有帮助的话？