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Putting column name to dataframe, can't work.
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Putting column name to dataframe, can't work.
I tried to put a column name for normal dataframe by putting df.columns = ['ColumnName'] It works. But, after I pd.concat(df,df1), I can't put a column name to it. Any idea

I also tried df.rename = ['ColumnName']
Do you want to change the name of an existing column (rename) or add a column? Adding a column is easy:
df['New Column Name'] = values
Where "New Column Name" is the name you want to use to ID the column and values is the list/array/whatever that you want to add.

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