The least populated class in y has only 1 member, which is too few. The minimum number of groups for

报错

The least populated class in y has only 1 member, which is too few. The minimum number of groups for any class cannot be less than 2.

原因

在使用train_test_split切割数据集时，出现异常：ValueError：y中填充最少的类只有1个成员，这太少了。任何类的最小组数都不能小于2。应该是数据集不符合train_test_split的要求。

解决方法

方法一：修改数据集中不符合的数据
https://blog.csdn.net/crowsfeather1/article/details/124040316
方二：将train_test_split的参数stratify=none

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The least populated class in y has only 1 member, which is too few. The minimum number of groups for

报错

原因

解决方法

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