/Python/Add column to df from another df

Add column to df from another df

How to add a column to a pandas df

#using the insert function:
df.insert(location, column_name, list_of_values) 
#example
df.insert(0, 'new_column', ['a','b','c'])
#explanation:
#put "new_column" as first column of the dataframe
#and puts 'a','b' and 'c' as values

#using array-like access:
df['new_column_name'] = value

#df stands for dataframe

Add column to df from another df

# pre 0.24
feature_file_df['RESULT'] = RESULT_df['RESULT'].values
# >= 0.24
feature_file_df['RESULT'] = RESULT_df['RESULT'].to_numpy()

Source: stackoverflow.com

Similar codes

1 vote99 views1 answer
Python remove non empty read only directory
Python
0 vote99 views1 answer
Set pytesseract cmd path
Python
0 vote133 views1 answer
Python tuples number Multiplication
Python
103 votes106 views4 answers
Separate a string in python
Python
140 votes101 views6 answers
Python random integer in range
Python
2 votes107 views2 answers
How to select a single cell in a pandas dataframe
Python
0 vote98 views1 answer
List files in s3 folder python
Python
0 vote99 views1 answer
Queryset.raw() in django rest framework joining tables
Python
15 votes98 views3 answers
Python json stringify
Python
0 vote104 views1 answer
Deezer python download
Python