/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 vote165 views1 answer
Check if string equals string in list python
Python
0 vote208 views1 answer
Aggregation with f() in django rest api
Python Django
0 vote167 views3 answers
Python multiplication table while loop
Python
0 vote159 views1 answer
Check this id exist in database django
Python
0 vote152 views1 answer
How to make a number guessing game in python
Python
0 vote158 views1 answer
Radians in python turtle
Python
0 vote163 views1 answer
ImportError: cannot import name 'StringIO'
Python
11 votes176 views5 answers
Linear regression in python
Python
0 vote131 views1 answer
Create_polygon tkinter
Python
0 vote205 views1 answer
Pandas count empty string values
Python

Share