Thanks for replying, I'm able to add new columns with LOC or without LOC. My question is why the below message coming while executing the syntax
*E:\BIBEESH\PYTHON\NSE\Basan_Version_1.ipy:295: SettingWithCopyWarning:A value is trying to be set on a copy of a slice from a DataFrame.Try using .loc[row_indexer,col_indexer] = value instead* *See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy <https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy> R2["BUY_SELL"]="SELL"* On Tue, Jun 9, 2020 at 10:06 AM Jim Lareau <[email protected]> wrote: > Yet again, a simple Google search: > > pandas dataframe add column > > yields as one result, the url: > > Adding new column to existing DataFrame in Pandas - GeeksforGeeks > > https://www.geeksforgeeks.org/adding-new-column-to-existing-dataframe-in-pandas/ > > Which answers your question. > > Regards, > > Jim > > -- > You received this message because you are subscribed to the Google Groups > "spyder" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/spyderlib/0142af4e-b02c-4660-b2a8-4c507bcebeabo%40googlegroups.com > . > -- You received this message because you are subscribed to the Google Groups "spyder" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/spyderlib/CAKbBZ2QFZLBhVxCgPSg1PKAZTFykWVn0qWU-kz7WF_wMuCssfg%40mail.gmail.com.
