multiple time series

Monthly model during investment phase, switching to semi-annual during long payback phase


Is there a way of having two separate time series within the same model, so that some inputs and outputs are determined on a monthly time series basis, while others are on a semi-annual basis.

Combine time series

Hi - I am struggling to combine two different types of assumptions - annual based and monthly based. I have different sheets for each however is there a feature such that the monthly revenue output is then summarized annually? 

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