Prior distribution for measurement errors
Posted: Thu May 26, 2011 7:32 pmHi,
I am trying to set a small suport for uniform prior distribution. However, when I set a small support such as:
stderr gi_obs, uniform_pdf,,,0,0.01;
I got the following:
On the other hand, if I set a support such as:
stderr gi_obs, uniform_pdf,,,0,0.1;
The estimation works fine. As far as I remember, the support for the uniform distribution, U[a,b], should work with any number from -inf<a,b<inf .
Am I missing something? Thanks
I am trying to set a small suport for uniform prior distribution. However, when I set a small support such as:
stderr gi_obs, uniform_pdf,,,0,0.01;
I got the following:
- Code: Select all
??? Error using ==> chol
Matrix must be positive definite.
Error in ==> metropolis_hastings_initialization at 52
d = chol(vv);
Error in ==> random_walk_metropolis_hastings at 58
[ ix2, ilogpo2, ModelName, MhDirectoryName, fblck, fline, npar,
nblck, nruns, NewFile, MAX_nruns, d ] = ...
Error in ==> dynare_estimation_1 at 871
feval(options_.posterior_sampling_method,'DsgeLikelihood',options_.proposal_distribution,xparam1,invhess,bounds,gend,data,...
Error in ==> dynare_estimation at 62
dynare_estimation_1(var_list,varargin{:});
Error in ==> new_formulation at 451
dynare_estimation(var_list_);
Error in ==> dynare at 132
evalin('base',fname) ;
On the other hand, if I set a support such as:
stderr gi_obs, uniform_pdf,,,0,0.1;
The estimation works fine. As far as I remember, the support for the uniform distribution, U[a,b], should work with any number from -inf<a,b<inf .
Am I missing something? Thanks