Hi Jason,
Thanks, your hint solved a problem for us too where we had a large number of 
data elements needing to be included in denominators of indicators – now we can 
make indicators to insert into other indicators. We are working in 2.26 and 
hoping this will not break in the newer versions when we update.
Regards
Jane

From: Dhis2-users 
<dhis2-users-bounces+jane.greig=london.msf....@lists.launchpad.net> On Behalf 
Of Peter D Lubambi
Sent: 26 July 2018 18:31
To: jason.p.picker...@gmail.com
Cc: dhis2-users <dhis2-users@lists.launchpad.net>; DHIS 2 developers 
<dhis2-d...@lists.launchpad.net>
Subject: Re: [Dhis2-users] Indicator - Maximum number of data elements in the 
expression

Hi Jason,
My indicator expression consist a total of 220 data elements (1 Positive*11 age 
bands *2 Sex*10 Testing points ), Alternative is, since I have created POS Male 
and POS Female so adding these two indicators would serve the purpose.
Regards,

Peter Dotto Lubambi,
Skype: plubambi
Mobile: +255 786 087 087


On Tue, Jul 17, 2018 at 1:57 PM Jason Pickering 
<jason.p.picker...@gmail.com<mailto:jason.p.picker...@gmail.com>> wrote:
Hi Peter,

I believe the limit to the number of expressions which are included in an 
indicator is that of the underlying database field which stores the expression, 
which should be very large. I think in practice, you may reach a limit where 
the indicator may be too complex to calculate quickly enough. We have created 
indicators with many hundreds of data elements, and while they do work, it can 
be a bit slow.

You may also encounter a limit in the user interface when defining the 
indicators, but if you are creating one with many dozens or hundreds of 
expression elements, you are probably not going to want to use the UI anyway, 
and would script the creation of the indicator.

While not supported through the user interface, adding together indicators will 
work it seems.

Would be interested to hear what your experience is if you create a "large" 
indicator, or one which consists of multiple indicator components.

Best regards,
Jason


On Tue, Jul 17, 2018 at 11:11 AM Peter D Lubambi 
<pluba...@gmail.com<mailto:pluba...@gmail.com>> wrote:
Dear All,
Is there a maximum number of data elements to be included in the 
Numerator/Denominator expression?
If so, is it possible to include another indicator in the indicator calculation 
expression?

Regards,
Peter Dotto Lubambi,
Skype: plubambi
Mobile: +255 786 087 087
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