dhis2-users team mailing list archive

[Lars Helge Øverland <larshelge@xxxxxxxxx>]

On Mon, May 3, 2010 at 2:03 PM, Friedman, Roger (CDC/OID/NCHHSTP) (CTR) <
rdf4@xxxxxxx> wrote:

>   How do booleans aggregate (a) across time periods; (b) up the
> organizational tree.  The answer for (b) appears to be OR, was hoping for
> COUNT.
>
>
Hi,

it depends on the aggregation operator for the relevant data element. If
SUM, then its count. If AVG, then its the percentage of true's.

Lars


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