【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)