Function

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mostafizceesust
Junior Member
Posts: 2
Joined: Thu Mar 29, 2018 10:38 am
Vensim version: DSS

Function

Post by mostafizceesust »

Is there any function in Vensim which is the inverse of Delay Fixed function??? Actually, I want to read my next year data to the present year. Please help...
tomfid
Administrator
Posts: 3806
Joined: Wed May 24, 2006 4:54 am

Re: Function

Post by tomfid »

For dynamic variables, you can't do this. It would create what is known as an acausal model - i.e. it implies knowledge of the future. (You can however achieve the same thing via optimization.)

For data variables, you can look ahead. You can use the TIME SHIFT function, or GET VDF DATA to look ahead in the data series.
Travis
Senior Member
Posts: 137
Joined: Tue Jul 15, 2008 8:42 pm

Re: Function

Post by Travis »

Depending on what exactly your need is, you might also be able to use the FORECAST function. TREND function is also related.

https://vensim.com/documentation/index. ... recast.htm
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