tpot ufunc 'isnan' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''

机器学习训练的时候报出这个问题

是因为dataframe中的数据类型有一个是‘object’，把它转成int,或float 就行,如下

df['A'] = df['A‘].astype(int)

参考链接：

https://blog.csdn.net/wqtltm/article/details/82228649