dynare/matlab/osr1.m

59 lines
1.5 KiB
Matlab

function oo_.dr=osr1(params,weights)
global M_ oo_ options_ it_
xlen = M_.maximum_lead + M_.maximum_lag + 1;
klen = M_.maximum_lag + M_.maximum_lead + 1;
iyv = M_.lead_lag_incidence';
iyv = iyv(:);
iyr0 = find(iyv) ;
it_ = M_.maximum_lag + 1 ;
if M_.exo_nbr == 0
oo_.exo_steady_state = [] ;
end
if ~ M_.lead_lag_incidence(M_.maximum_lag+1,:) > 0
error ('OLR: Error in model specification: some variables don"t appear as current') ;
end
if M_.maximum_lead == 0
error ('Backward or static model: no point in using OLR') ;
end
if xlen > 1
error (['OLR: stochastic exogenous variables must appear only at the' ...
' current period. Use additional endogenous variables']) ;
end
% check if ys is steady state
fh = str2func([M_.fname '_static']);
if max(abs(feval(fh,oo_.steady_state))) > options_.dynatol
[oo_.dr.ys, check] = dynare_solve([M_.fname '_static'],oo_.steady_state);
if check
error('OLR: convergence problem in DYNARE_SOLVE')
end
else
oo_.dr.ys = oo_.steady_state;
end
np = size(params,1);
t0 = zeros(np,1);
for i=1:np
t0(i)=evalin('base',[params(i,:) ';']);
end
[p,f]=fminsearch(@osr_obj,t0,[],params,weights);
disp('')
disp('OPTIMAL VALUE OF THE PARAMETERS:')
disp('')
for i=1:np
disp(sprintf('%16s %16.6g\n',params(i,:),p(i)))
end
disp(sprintf('Objective function : %16.6g\n',f));
disp(' ')
oo_.dr=resol(oo_.steady_state,options_.dr_algo,options_.linear,options_.order);
% 05/10/03 MJ modified to work with osr.m and give full report