Answers for "merge two dataframes by a column"

combining 2 dataframes pandas

df_3 = pd.concat([df_1, df_2])

Posted by: Guest on May-13-2020

python dataframe left join

>>> left.merge(right, on='user_id', how='left')

Posted by: Guest on April-10-2020

dataframe concatenate

# Pandas for Python

df['col1 & col2'] = df['col1']+df['col2']

#Output
#col1	col2	col1 & col2
#A1		A2		A1A2
#B1		B2		B1B2

Posted by: Guest on April-17-2020

Code answers related to "merge two dataframes by a column"