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To convert a DataFrame column into a Series in Pandas, you can access the column by its name using either bracket notation (df['column_name']) or dot notation (df. column_name).



 The drop_duplicates() function is used to get Pandas series with duplicate values removed. 'first' : Drop duplicates except for the first occurrence. 'last' : Drop duplicates except for the last occurrence. False : Drop all duplicates.15.09.2022


https://pandas.pydata.org/docs/reference/api/pandas.concat.html