create a pandas dataframe with 2 columns code example
Example 1: plotting two columns of a dataframe in python
df.plot(x='col_name_1', y='col_name_2', style='o')
Example 2: pandas merge two columns from different dataframes
#suppose you have two dataframes df1 and df2, and
#you need to merge them along the column id
df_merge_col = pd.merge(df1, df2, on='id')