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PISDK ExpressionSummaries function returns different values for the same arguments

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Hello everyone,

 

I'm using the ExpressionSummaries function to calculate total values for an expression.

The problem is that I'm using the same arguments (start time, end time, expression, etc) for this fuction for each call, but it returns different values when it is called on different time (e.g. value returned by the fuction yesterday is differ from the value returned today).

What could be the reason?

 

Thanks!

 

Br, Alexander


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