giving name to column levels could be useful in many ways when you manipulate your data. a simple example would be when you use `stack()' ... <看更多>

What are the different methods for accessing parts of a data frame? Objectives ... The first row of this csv file is a list of column names. ... <看更多>

I would like to rename the column names, but the Data Frame contains similar column names. How do I rename them? df.columns. Output: ... <看更多>

0, I believe that we should offer some runtime safety for users who chose to fit on dataframes, that their column names and orderings should be ... ... <看更多>