Category combo expressions

Registered by jason.p.pickering on 2015-12-19

Currently, only summations of various category combo options can be calculated with a given data element. It would be useful to have expressions, to allow for flexible calculations of different expressions of a data element. As an example, consider the use case of commodities, which might consist of a data element like "RDT tests". A facility might record the number of tests received, dispensed, adjustments, wasted and expired. In order to calculate the balance of tests (or any given commodity), an expression of the various activities (modeled as category combo options) could be calculated as Balance = Received - Dispensed + Adjustments - Wasted - Expired.

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jason.p.pickering
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