成功解决pandas\core\indexing.py:179: SettingWithCopyWarning: A value is trying to be set on a copy of a
成功解决pandas\core\indexing.py:179: SettingWithCopyWarning: A value is trying to be set on a copy of a
解决问题
pandas\core\indexing.py:179: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame
解决思路
错误地址:pandas\core\indexing.py:179
设置复制警告:试图在DataFrame切片的副本上设置一个值
See the caveats in the documentation: http://pandas.pydata.org/pandas-docs/stable/indexing.html #indexing-view-versus-copy
self._setitem_with_indexer(indexer, value)
解决方法
此信息提示为警告,而不是error,即使不处理也不会影响代码编程的运行。如果想要去掉,可以更新库至最新版本!
然后根据要求提示修改使用方法!
在进行 a copy of a slice from a DataFrame时,该方法不再推荐使用!需要从http://pandas.pydata.org/pandas-docs/stable/indexing.html 文档查看最新的调用方法!
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