.py程序运行时，出现operands could not be broadcast together with shape (12,) (11,)错误
2018-12-28 11:34
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在变量分箱并调用自定义函数get_woe_iv计算WOE值和IV时，或其他类似于分组场景的情况下，提示operands could not be broadcast together with shape (12,) (11,)错误
这是由于变量分箱中，某个bin中的观测个数为0（即没有观测），或者分组区间没有覆盖到部分值，导致根本不存在这样的区间，就导致实际的数据维度小于应有的数据维度。这点不同于SAS中的变量分箱，如果观测为0，也会存在该箱，只是观测为缺失值.
解决方法：
改变变量分箱（或数据分组）的列表区间，即可解决
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