/Python/Pandas join two dataframes

Pandas join two dataframes

Merge two dataframes based on column

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

df_outer

10

Combining 2 dataframes pandas

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

10

Join on column pandas

# df1 as main df and use the feild from df2 and map it into df1

df1.merge(df2,on='columnName',how='left')

7

Pandas left join

df.merge(df2, left_on = "doc_id", right_on = "doc_num", how = "left")

4

Pandas join two columns

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

0

Pandas join two dataframes

df = df1.append(df2)

0

Similar codes

0 vote307 views1 answer
Dtype function with example
Python
0 vote331 views1 answer
Check for strings as positive/negative - integer/float
Python
0 vote316 views1 answer
Ensure string length 2 python
Python
3 votes297 views2 answers
Python discord webhook
Python
2 votes297 views1 answer
Python buffer
Python
0 vote319 views1 answer
Append to an array in 1st place python
Python
6 votes278 views2 answers
Sys.executable
Python
0 vote277 views1 answer
|safe django
Python
4 votes329 views2 answers
Python socket recv timeout
Python
1 vote305 views1 answer
Python select random subset from numpy array
Python

Share