# External MATLAB function in Dynare **URL:** https://forum.dynare.org/t/external-matlab-function-in-dynare/2502 **Category:** Stochastic simulations **Created:** [2 May 2012 08:52 UTC](https://forum.dynare.org/t/external-matlab-function-in-dynare/2502 "2012-05-02T08:52:27Z") **Posts on this page:** 1 **Showing post:** 1
### Author: ![mary](https://forum.dynare.org/letter_avatar_proxy/v4/letter/m/e99b99/32.png) [@mary](https://forum.dynare.org/u/mary) #### Post date: [2 May 2012 08:52 UTC](https://forum.dynare.org/t/external-matlab-function-in-dynare/2502/1 "2012-05-02T08:52:27Z")
Hello everyone! I am trying to incorporate a matlab function in Dynare, but it doesn’t seem to like it. I have a linearized model, in which some coefficients depend on steady state values. Therefore, I solved for the steady state by hand and I wrote a matlab function (called ssvalues) which, given values for the model parameters, gives the steady state values as outputs. I tried to incorporate this function in my .mod file after the the “parameters” block, when I specify values of parameters. In particular, I coded: beta = 0.998; [y\_ss, c\_ss, otherssvalues\_ss] = ssvalues(beta); When I try to run the .mod file I get the following error message: STEADY: numerical initial values incompatible with the following equations Columns 1 through 14 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ``` Columns 15 through 28 ``` 15 16 17 18 19 20 21 22 23 25 27 28 29 31 ``` Columns 29 through 31 ``` 32 33 34 ``` ??? Error using ==\> dynare\_solve at 94 exiting … Error in ==\> steady\_ at 120 [oo\_.steady\_state,check] = dynare\_solve([M\_.fname ‘\_static’],… Error in ==\> steady at 54 steady\_; Error in ==\> basesimple at 386 steady; Error in ==\> dynare at 120 evalin(‘base’,fname) ; Apparently, Dynare does not use the outputs of my function as parameters of the model. 😮 Can anyone tell me why this happens and how can I do tho fix this problem? Thank you very much! Best, Mary --- _[View the full topic](https://forum.dynare.org/t/external-matlab-function-in-dynare/2502)._