Sniffing the dynare version

Dynare v4 (legacy)
1

Dear Musketeers,

I am writing some matlab functions that I try to make general such that they work both with dynare 3 and 4. Is there an easy and neat way to sniff what is the dynare version that the user of those functions is utilizing?

Regards,
Antti

2

Hi Antti,

check whether endo_nbr exists as a global variable. Then you are in version 3

The preferred alternative would be to press us to port to version 4 whichever function you use in version 3 and that isn’t present in version 4. We should really think about getting off version 3.

Best

Michel

3

Thanks Michel!

Actually this was not quite trivial but the following code (isDynare4.m) should do the job:

function isit=isDynare4 
% returns TRUE if you are running dynare 4
global endo_nbr;
isit = isempty(endo_nbr); % in the case of Dynare 3 endo_nbr has a sensible value (?)

This is handy when the operation of a function depends on the dynare version.

Antti

4

Thanks Antti

M