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Predictors - Skip Zero ou Null values

To: DHIS 2 Users List <dhis2-users@xxxxxxxxxxxxxxxxxxx>
From: Sakibou ALASSANI <sakibou.alass@xxxxxxxx>
Date: Fri, 23 Mar 2018 00:59:58 +0000 (UTC)
Reply-to: Sakibou ALASSANI <sakibou.alass@xxxxxxxx>

Hi,
Please I want to know if Predictors can do that or if not what is the workaround.
I want to SUM 2 past value for one dataElement, but only for 2 periods where I have Data not ZERO or NULL.

Use case: to generate data in March. we can SUM ( Feb + Jan) . But If no data for example in January, How automaticaly Take December Data if not Take November data.

Thank you.

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Sakibou

Follow ups

Re: Predictors - Skip Zero ou Null values
From: Jim Grace, 2018-03-23