I need to add a column, that do what's here in the example.
example:
data
1
2
4
6
8
9
7
5
3
2
and I need a column like this one
data new_col
1 1
2 1
4 1
6 1
8 2
9 2
7 2
5 2
3 3
2 3
...
and so on.
How can I do this?
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Habi
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What is the logic? +1 every 4 numbers? – mozway Feb 23 '23 at 18:44
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2`df['new_col'] = np.arange(len(df))//4+1` or similar – mozway Feb 23 '23 at 18:45
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1Does this answer your question? [How to add a new column to an existing DataFrame?](https://stackoverflow.com/questions/12555323/how-to-add-a-new-column-to-an-existing-dataframe) – Roshin Raphel Feb 26 '23 at 19:04