# Input numbers from .m file to dynare

Hello, community!

I have ‘filename.m’ where I set ‘Mon_Pol_Shock=1’. How can I input the variable in this file to dynare such that I can write:

@#if Mon_Pol_Shock==1
stoch_simul(irf=12, irf_shocks=(epsilon_R)) y c i
@#endif

In other words, I am having trouble loading external files to dynare.

Best,
Nurdaulet

Hi Nurdaulet,

In order to include a portion of a model file into another model file, use

``````@#include "myexternalfile.mod"

``````

If you are wondering how to define that the macro `Mon_Pol_Shock` be equal to 1, you can define it so when you invoke Dynare:

``````dynare mymodelname -DMon_Pol_Shock = 1

``````

Thank you, Professor! That was very useful!

Thank you so much! It worked!