matlab function to determine varexo_det values

[Mykhaylo]

Hello. I am trying to simulate a simple deterministic model in Dynare, and I have a Matlab function that takes an integer for a current period and returns a value of an exogenous variable for this period. Is it possible for Dynare to call this function to determine the value of the exogenous variable in the model?
Thank you

[SébastienVillemot]

First, note that exogenous variables in deterministic models should be declared with “varexo”, not “varexo_det” (which is only used for stochastic models).

It is possible to do what you want by filling the “oo_.exo_simul” vector with the values of the exogenous at every period. This structure has as many colums as there are exogenous, and max_lag+T+max_lead rows corresponding to periods (where T is the number of simulation periods, and the extra rows are for initial and terminal conditions).