aggregate by row possible?

[navjeetc]

Is it possible to show aggregated numbers when you have two values in rows. e.g. if the rows have occupation (Doctor, Engineer) and Person Name, can I get total number of people in each occupation. Right now with reducer impl of reducer: (sum, item) => sum + 1, it displays like

blank header	blank header	blank header
	John Doe	1
Engineer	John Smith	1
	Mike Smith	1
Doctor	John Paul	1
	Mike Paul	1

But I want to also display total number for Engineer - 3 and and Doctor - 2

[antoinematyja]

In your example, totals by Occupation can be displayed by removing the Person Name column, but it implies changing the columns settings, and you want to have the 2 numbers at the same time.

We could imagine adding a boolean to the Occupation column settings, something like displayTotal which would add a row for each Occupation with its total.

In the case of the demo of this app (country/gender/year), with displayTotal on "country" this would give this :

Quite a headache to build colspans/rowspans but it seems possible. But it's a lot of work, and this is not my top priority.

[rczupa]

Hi Antoinematyja how are you ? Can I fork your project to increase new features ? I need the possibility to use more than one different algoritm of aggregators and this totalizer discussed in here.

After that, if you want, we can merge the solution.

Thanks.

[antoinematyja]

Hi 🙂 Sure.

I'm currently working on new features to add more customization to the headers.
The API for the PivotTable component will change a bit (especially the fields definition), but it should not be incompatible with the features you want to work on.

Thanks for your interest