I would like to copy 1 column of the Dataframe, but I get always a warning message: "A value is trying to be set on a copy of a slice from a DataFrame." I know it is because of Chained assignment, I only can't find a proper solution:
This is the first method which is not works:
data3['Close2'] = data3['Close']
I tried another methods, just like below, but nothing of them works:
data3['Close2'] = data3['Close'].copy()
data3['Close2']=data3['Close'].values
data3['Close_input'] = data3['Close'].copy(deep=True)
data3['Close_input'] = data3.loc[:, ('Close')]
data3.Close_input = data3.Close
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
How should I modify my code to avoid warning messages?
Thanks in advance, R
