交换两个DataFrame列?
it1352
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问题说明
在MATLAB中，要交换表A的第一和第二列，可以这样做 1
In MATLAB, to swap the first and second columns of a table A, one would do this1
A = A(:, [2 1 3:end]);
如果A是大熊猫DataFrame，还有类似的便捷方法吗?
Is there a similarly convenient way to do this if A were a pandas DataFrame instead?
1 MATLAB使用基于1的索引.
1 MATLAB uses 1-based indexing.
正确答案
#1
pandas具有执行此操作的reindex方法.您只需要按所需顺序提供一个列名列表:
pandas has reindex method that does it. You just need to give a list with the column names in the order you wish:
columns_titles = ["B","A"]
df=df.reindex(columns=columns_titles)
欢呼
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