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Insight makes it easy to ask questions of ALL of your clinical and operational data and visualize answers via interactive reports and dashboards. The idea is simple, but the results are powerful: ask your questions, choose your visualizations, then return often for updated, interactive results that link you to all of the underlying data.

Rule: Compare Date

Is OpenClinica capable of comparing Date variables? For example, ensuring that the start date of medication use is earlier than the stop date.
I have tried writing a rule to compare two date variables but it returns an error: The Rule you are trying to reference does not exist or is Invalid
Thank you for any help.
Jay
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