Answers for "combining two columns in pandas"

merge two dataframes based on column

df_outer = pd.merge(df1, df2, on='id', how='outer') #here id is common column

df_outer

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')

how to merge two pandas dataframes on a column

import pandas as pd
T1 = pd.merge(T1, T2, on=T1.index, how='outer')

merge two dataframes based on column

df_merge_col = pd.merge(df_row, df3, on='id')

df_merge_col

merge two columns pandas

df["period"] = df["Year"] + df["quarter"]