how to stack two dataframes pandas code example
Example 1: pandas left join
df.merge(df2, left_on = "doc_id", right_on = "doc_num", how = "left")Example 2: merge two df
bigdata = pd.concat([data1, data2], ignore_index=True, sort=False)df.merge(df2, left_on = "doc_id", right_on = "doc_num", how = "left")bigdata = pd.concat([data1, data2], ignore_index=True, sort=False)