Dynare forums

I done my model in nonliear form

but when i try to run it ,but it has some error
-------------------------
Warning: Divide by zero.
> In yoyo at 252
In dynare at 120
Warning: Divide by zero.
> In yoyo at 271
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 38
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 103
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 238
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 240
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 241
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 246
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
Warning: Divide by zero.
> In yoyo_static at 248
In dynare_solve at 84
In steady_ at 120
In steady at 54
In yoyo at 292
In dynare at 120
STEADY: numerical initial values incompatible with the following equations
Columns 1 through 17

3 4 5 6 7 8 9 10 11 12 13 18 19 20 21 22 23

Columns 18 through 20

24 25 26

??? Error using ==> dynare_solve at 96
exiting ...

Error in ==> steady_ at 120
[oo_.steady_state,check] = dynare_solve([M_.fname '_static'],...

Error in ==> steady at 54
steady_;

Error in ==> yoyo at 292
steady;

Error in ==> dynare at 120
evalin('base',fname) ;


I find someone say maybe the initval value is wrong

then i use the steady state value solve by hand to plug in

some i can't solve i set by myself

but i t's still wrong...

please tell me how to solve it .. thank you for your help!

In your steady state computation, you have

Code: Select all

omds= (2.0*v + 2.0*(mu*v - 2.0*v - 1.0*mu*v^2 + v^2 + 1.0)^(1/2) - 2.0)/(mu*v);
v=(1+omds*(1-bet^(2)*gam-0.5*mu)+omds^(2)*(0.5*bet^(2)*gam-0.5));


omds uses v, but v is only computed in the next line and cannot be used before.

Really really thanks to you !!~~jpfeifer
I solve the problem!^^!~~
but now I get some new problem
------------------------------
dynare yoyo1.mod

Configuring Dynare ...
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.

Starting Dynare (version 4.2.5).
Starting preprocessing of the model file ...
Found 37 equation(s).
Evaluating expressions...done
Computing static model derivatives:
- order 1
Computing dynamic model derivatives:
- order 1
- order 2
Processing outputs ...done
Preprocessing completed.
Starting MATLAB/Octave computing.

Warning: Divide by zero.
> In yoyo1_static at 19
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 22
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 29
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 30
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 36
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 39
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 46
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 48
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 49
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 51
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 54
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 56
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 61
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 92
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 95
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 100
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 131
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 133
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Divide by zero.
> In yoyo1_static at 134
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Log of zero.
> In yoyo1_static at 157
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Log of zero.
> In yoyo1_static at 158
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Log of zero.
> In yoyo1_static at 160
In resid at 87
In yoyo1 at 244
In dynare at 120
Warning: Log of zero.
> In yoyo1_static at 161
In resid at 87
In yoyo1 at 244
In dynare at 120




Residuals of the static equations:

Equation number 1 : -Inf
Equation number 2 : NaN
Equation number 3 : NaN
Equation number 4 : -1.1429
Equation number 5 : 0
Equation number 6 : 0
Equation number 7 : NaN
Equation number 8 : NaN
Equation number 9 : NaN
Equation number 10 : NaN
Equation number 11 : NaN
Equation number 12 : 0
Equation number 13 : NaN
Equation number 14 : -Inf
Equation number 15 : NaN
Equation number 16 : NaN
Equation number 17 : -1.1429
Equation number 18 : 0
Equation number 19 : 0
Equation number 20 : NaN
Equation number 21 : NaN
Equation number 22 : NaN
Equation number 23 : NaN
Equation number 24 : NaN
Equation number 25 : 0
Equation number 26 : NaN
Equation number 27 : NaN
Equation number 28 : -1
Equation number 29 : -1
Equation number 30 : -1
Equation number 31 : -1
Equation number 32 : 0
Equation number 33 : 0
Equation number 34 : 0
Equation number 35 : NaN
Equation number 36 : NaN
Equation number 37 : 0

??? Error using ==> steady_ at 132
STEADY: convergence problems

Error in ==> steady at 54
steady_;

Error in ==> yoyo1 at 293
steady;

Error in ==> dynare at 120
evalin('base',fname) ;
-----------------------------------
why there all NaN and INF QQ..?
matlab say divide by zere and log of zero
but I don't know which equation is?
could you teach me how to solve it?
Thanks for your help!
Best YOYO

They are numbered as they appear in the model. Provide better starting values in the initval-block.