I need to calculate several sensitivity and elasticities in my model, how can i tell vensim that i need a t-1 in an equation?
For instance, supposed i have X and Y linked, and Y = (X(t)-X(t-1))/X(t), how can i write this equation on vensim?
How to model a t-1 function on vensim
Re: How to model a t-1 function on vensim
Usually it's easiest to create something like:
Previous X = DELAY FIXED(x, one period, x)
More here:
https://metasd.com/2017/11/discrete-time-stinks/
Previous X = DELAY FIXED(x, one period, x)
More here:
https://metasd.com/2017/11/discrete-time-stinks/
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