Best way to update a cell value and avoid SettingWithCopyWarning

Question

I have a pandas DataFrame and I want to update a particular cell value (adding a fix number, like 10), like this:

df['A'].iloc[0] = df['A'].iloc[0] + 10

Which is the best way to achieve this goal avoiding the

SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame

https://stackoverflow.com/questions/20625582/how-to-deal-with-settingwithcopywarning-in-pandas — BENY, Jul 01 '19 at 18:03

score 0 · Answer 1 · answered Jul 01 '19 at 18:09

0

You can try:

df.loc[0, 'A'] = df.loc[0, 'A'] + 10

answered Jul 01 '19 at 18:09

René

1 Answers1