/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

2 votes167 views2 answers
No module named 'storages'
Python
4 votes173 views3 answers
How to write to an output file in pytion
Python
0 vote157 views1 answer
How to find how many processors you have with python
Python
0 vote153 views1 answer
How do you make plot show with matplotlib ion method
Python
0 vote166 views1 answer
Dict to attr python
Python
1 vote156 views1 answer
Pandas dataframe lists as columns
Python
4 votes171 views2 answers
Flask arguments in url
Python
0 vote158 views1 answer
Scroll horizontal excel
Python
-1 vote193 views2 answers
This code is supposed to display "2 + 2 = 4" on the screen, but there is an error. Find the error in the code and fix it, so that the output is correct.
Python
0 vote167 views1 answer
Add header info in django response
Python