【Python】ParserError: Error tokenizing data. C error: Expected 13 fields in line 45, saw 23

https://blog.csdn.net/Asher117/article/details/89357932

TypeError: 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)

原文：https://www.cnblogs.com/zhouyu0-0/p/12108107.html