understanding pandas slicing copy SettingWithCopyWarning:

Asked Mar 11 '23 at 03:24

Active Mar 11 '23 at 06:03

Viewed 27 times

I try to understand how pandas works on slicing and copy, when I try to run the code below, it appears 'SettingWithCopyWarning'. How to account for this ?

There are references here (Understanding Pandas SettingWithCopyWarning) but I still don't understand how it works, any other references?

test1 = pd.DataFrame(index = [1,2,3,4,5])
test1['a'] = [11,12,13,14,15]
test1['b'] = ''
test1['b'].iloc[0] = test1['a'].iloc[0]
test1

edited Mar 11 '23 at 06:03

Ynjxsjmh

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asked Mar 11 '23 at 03:24

stvlam22

Please read this question on [copy vs view](https://stackoverflow.com/questions/23296282/what-rules-does-pandas-use-to-generate-a-view-vs-a-copy). – mozway Mar 11 '23 at 05:09
Thanks mozway.. for your reference – stvlam22 Mar 11 '23 at 05:58

understanding pandas slicing copy SettingWithCopyWarning:

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