/Python/Try using .loc[row_indexer,col_indexer] = value instead

Try using .loc[row_indexer,col_indexer] = value instead

import pandas as pd
pd.options.mode.chained_assignment = None  # default='warn'
# This will stop showing this warning 
# Alternatively you can use .loc as suggested by the message

Source: stackoverflow.com

SettingWithCopyWarning: A value is trying to be set on a copy of a slice from a DataFrame. Try using .loc[row_indexer,col_indexer] = value instead

import pandas as pd
pd.options.mode.chained_assignment = None  # default='warn'

Source: stackoverflow.com

Try using .loc[row_indexer,col_indexer] = value instead

new_df = df.loc[df.col1>2].copy()
new_df.loc[2, 'new_column'] = 100

-1

Source: stackoverflow.com

Similar codes

-4 votes319 views10 answers
Cheat sheet python
Python
5 votes333 views3 answers
Python is not
Python
1 vote316 views1 answer
Format number of digits python
Python
1 vote323 views1 answer
Conda requests
Python
0 vote328 views1 answer
Lambda if else nothing python
Python
22 votes330 views4 answers
No module named 'sklearn.cross_validation'
Python
0 vote315 views1 answer
How to add previous and next in tkinter in python
Python
21 votes300 views4 answers
Floor function in python
Python
0 vote334 views1 answer
=adaqtar
Python
0 vote340 views1 answer
Pendulum python
Python