What i can do in this error

Stochastic simulations
1

Error using chol
Matrix must be positive definite.
Error in posterior_sampler_initialization (line 84)
d = chol(vv);
Error in posterior_sampler (line 60)
posterior_sampler_initialization(TargetFun, xparam1, vv,
mh_bounds,dataset_,dataset_info,options_,M_,estim_params_,bayestopt_,oo_);
Error in dynare_estimation_1 (line 465)
posterior_sampler(objective_function,posterior_sampler_options.proposal_distribution,xparam1,posterior_sampler_options,bounds,dataset_,dataset_info,options_,M_,estim_params_,bayestopt_,oo_);
Error in dynare_estimation (line 105)
dynare_estimation_1(var_list,dname);
Error in fs_est.driver (line 205)
oo_recursive_=dynare_estimation(var_list_);
Error in dynare (line 288)
evalin(‘base’,[fname ‘.driver’]) ;

model_est.txt (743 Bytes)

2

You are missing the data file.

3

I have data file 29 observation and i save it as data.mat

4

But you did not upload it here.

5

data.mat (359 Bytes)

6

Your data has an unhandled trend.