Answers for "concatenate 2 columns pandas"

python merge strings in columns

df["period"] = df["Year"].astype(str) + df["quarter"]

merge two columns pandas

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

pandas join two columns

df['FullName'] = df[['First_Name', 'Last_Name']].agg('-'.join, axis=1)

concat 3 column in pandas

In[17]:df['combined']=df['bar'].astype(str)+'_'+df['foo']+'_'+df['new']

In[17]:df
Out[18]: 
   bar foo     new    combined
0    1   a   apple   1_a_apple
1    2   b  banana  2_b_banana
2    3   c    pear    3_c_pear

how to merge two column pandas

DataFrame["new_column"] = DataFrame["column1"] + DataFrame["column2"]