最近学习pandas，其中：
ages = [20,22,25,27,21,23,37,31,61,45,41,32] bins=[18,25,35,60,100] group_names = [‘Youth‘,‘YouthAdult‘,‘MiddleAged‘,‘Senior‘] pd.cut(ages,bins,labels=group_names) [Youth, Youth, Youth, YouthAdult, Youth, ..., YouthAdult, Senior, MiddleAged, MiddleAged, YouthAdult] Length: 12 Categories (4, object)：[MiddleAged < Senior < Youth < YouthAdult]
MiddleAged < Senior < Youth < YouthAdult应该为排序为：Youth < YouthAdult<MiddleAged < Senior，我试了几次发现这里的排序是按照字母的顺序来排的，不是自定义的箱名顺序，请问一下大神为什么会出现这样的结果？
原文：https://www.cnblogs.com/nbdzsw/p/12132110.html