dhis2-users team mailing list archive

[Jason Pickering <jason.p.pickering@xxxxxxxxx>]

Thanks for the explanation Lars. Could you comment on the possibility to
include user defined periods which would need to be generated externally
and then imported? Generating a series of weeks which start on Wednesday
would be a few lines of code in R. I think this might keep things
simple,but allow implementers with specific requiememnts to manually
generate periods for  as far into the past or future as they may need.

Of course the issue of period names is a bit complicated,but likely easily
solvable?

Regards,
Jason

--
Sent from my mobile
On Jul 2, 2013 2:09 PM, "Lars Helge Øverland" <larshelge@xxxxxxxxx> wrote:

> Hello Johannes,
>
> the way we handle time period aggregation is simple: When aggregating in
> the time dimension, we include all periods which start dates fall within
> the aggregation period. As an example, when aggregating monthly data to a
> quarterly aggregate, we include all months which start dates fall within
> that quarter. This usually works well but is admittedly not ideal for
> weeks, where you might want more specialized rules for determining whether
> a week falls within a "longer" period or not.
>
> At the moment, the design of our period solution allows only for fixed
> period types, in the sense that you can select from a predefined lists of
> period types; you cannot select "weekly" and then start day of week.
>
> It seems you have two requirements. i) Displaying correct Cambodian weekly
> start/end dates in data entry and ii) have the time period aggregation work
> correctly in terms of which weeks get included in aggregation periods.
> Correct?
>
> I think we have two options here. The first is to allow more flexibility
> in terms of period starting days and which day of week determines which
> year a week falls within. This would require a bit development work. The
> second is to implement more predefined period types, ie. "Weekly
> (Wednesday)". The issue with this is that we might end up with 7 different
> weekly period types. Anyone knows how many types of weeks there are out
> there?
>
> regards,
>
> Lars
>
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