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Cumulative sum over time by group|General Excel Questions & Answers|Excel Forum|My Online Training Hub

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sp_CrumbsHome HomeExcel ForumGeneral Excel Questions & Answe…Cumulative sum over time by group
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Cumulative sum over time by group
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Bruno Melki
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April 20, 2020 - 6:11 pm
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Hello

I have list of data (numbers) over time (days) for several groups. I need to calculate the cummulative data of each group by time for every day. In mpython, I get the result that way after sorting it:

data_sorted['cum'] = data_sorted.groupby(['group'])['data'].cumsum()

 

How can I get it in excel. Didn't succeed to overcome the long list

Thanks

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Bruno Melki
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April 20, 2020 - 6:13 pm
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Philip Treacy
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April 20, 2020 - 7:00 pm
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Hi Bruno,

Sounds like a job for a pivot table. Please supply your workbook with the data.

Regards

Phil

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Bruno Melki
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April 21, 2020 - 5:32 am
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Quick response.. Thanks.

Actualy, I succeded to get it with pivot table but I need to perform additional maths based on the results. I didn't succeed to take the results table back to the original one neither.

I attach the blog01-1 simplified example with the cummulative I calculated (easy to do for some rows only) and an example of math I need to add "[%] of cases". I have some more statistics like that to perform. The yellow are the data I have and the blue are calculated columns.

It is possible ?

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