Cosmetic change in doc headers.
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function [dr,info] = dyn_first_order_solver(jacobia,DynareModel,dr,DynareOptions,task)
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function [dr, info] = dyn_first_order_solver(jacobia, DynareModel, dr, DynareOptions, task)
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%@info:
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%! @deftypefn {Function File} {[@var{dr},@var{info}] =} dyn_first_order_solver (@var{jacobia},@var{DynareModel},@var{dr},@var{DynareOptions},@var{task})
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%! @anchor{dyn_first_order_solver}
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%! @sp 1
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%! Computes the first order reduced form of the DSGE model
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%! @sp 2
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%! @strong{Inputs}
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%! @sp 1
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%! @table @ @var
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%! @item jacobia
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%! Matrix containing the Jacobian of the model
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%! @item DynareModel
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%! Matlab's structure describing the model (initialized by @code{dynare}).
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%! @item dr
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%! Matlab's structure describing the reduced form solution of the model.
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%! @item qz_criterium
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%! Double containing the criterium to separate explosive from stable eigenvalues
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%! @end table
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%! @sp 2
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%! @strong{Outputs}
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%! @sp 1
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%! @table @ @var
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%! @item dr
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%! Matlab's structure describing the reduced form solution of the model.
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%! @item info
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%! Integer scalar, error code.
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%! @sp 1
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%! @table @ @code
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%! @item info==0
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%! No error.
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%! @item info==1
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%! The model doesn't determine the current variables uniquely.
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%! @item info==2
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%! MJDGGES returned an error code.
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%! @item info==3
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%! Blanchard & Kahn conditions are not satisfied: no stable equilibrium.
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%! @item info==4
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%! Blanchard & Kahn conditions are not satisfied: indeterminacy.
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%! @item info==5
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%! Blanchard & Kahn conditions are not satisfied: indeterminacy due to rank failure.
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%! @item info==7
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%! One of the generalized eigenvalues is close to 0/0
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%! @end table
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%! @end table
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%! @end deftypefn
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%@eod:
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% Computes the first order reduced form of a DSGE model.
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%
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% INPUTS
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% - jacobia [double] matrix, the jacobian of the dynamic model.
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% - DynareModel [struct] Matlab's structre describing the model, M_ global.
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% - dr [struct] Matlab's structure describing the reduced form model.
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% - DynareOptions [struct] Matlab's structure containing the current state of the options, oo_ global.
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% - task [integer] scalar, if task = 0 then decision rules are computed and if task = 1 then only eigenvales are computed.
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%
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% OUTPUTS
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% - dr [struct] Matlab's structure describing the reduced form model.
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% - info [integer] scalar, error code. Possible values are:
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%
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% info=0 -> no error,
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% info=1 -> the model doesn't determine the current variables uniquely,
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% info=2 -> mjdgges dll returned an error,
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% info=3 -> Blanchard and Kahn conditions are not satisfied: no stable equilibrium,
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% info=4 -> Blanchard and Kahn conditions are not satisfied: indeterminacy,
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% info=5 -> Blanchard and Kahn conditions are not satisfied: indeterminacy due to rank failure,
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% info=7 -> One of the eigenvalues is close to 0/0 (infinity of complex solutions)
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% Copyright (C) 2001-2017 Dynare Team
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% Copyright (C) 2001-2018 Dynare Team
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%
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% This file is part of Dynare.
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%
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@ -1,33 +1,28 @@
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function [dr,info] = stochastic_solvers(dr,task,M_,options_,oo_)
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% function [dr,info,M_,options_,oo_] = stochastic_solvers(dr,task,M_,options_,oo_)
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% computes the reduced form solution of a rational expectations model (first, second or third
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function [dr, info] = stochastic_solvers(dr, task, M_, options_, oo_)
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% Computes the reduced form solution of a rational expectations model (first, second or third
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% order approximation of the stochastic model around the deterministic steady state).
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%
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% INPUTS
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% dr [matlab structure] Decision rules for stochastic simulations.
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% task [integer] if task = 0 then dr1 computes decision rules.
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% if task = 1 then dr1 computes eigenvalues.
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% M_ [matlab structure] Definition of the model.
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% options_ [matlab structure] Global options.
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% oo_ [matlab structure] Results
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% - dr [struct] Decision rules for stochastic simulations.
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% - task [integer] scalar, if task = 0 then decision rules are computed and if task = 1 then only eigenvales are computed.
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% - M_ [struct] Definition of the model.
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% - options_ [struct] Options.
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% - oo_ [struct] Results
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%
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% OUTPUTS
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% dr [matlab structure] Decision rules for stochastic simulations.
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% info [integer] info=1: the model doesn't define current variables uniquely
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% info=2: problem in mjdgges.dll info(2) contains error code.
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% info=3: BK order condition not satisfied info(2) contains "distance"
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% absence of stable trajectory.
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% info=4: BK order condition not satisfied info(2) contains "distance"
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% indeterminacy.
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% info=5: BK rank condition not satisfied.
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% info=6: The jacobian matrix evaluated at the steady state is complex.
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% info=9: k_order_pert was unable to compute the solution
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% ALGORITHM
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% ...
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%
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% SPECIAL REQUIREMENTS
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% none.
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% - dr [struct] Decision rules for stochastic simulations.
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% - info [integer] scalar, error code:
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%
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% info=1 -> the model doesn't define current variables uniquely
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% info=2 -> problem in mjdgges.dll info(2) contains error code.
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% info=3 -> BK order condition not satisfied info(2) contains "distance"
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% absence of stable trajectory.
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% info=4 -> BK order condition not satisfied info(2) contains "distance"
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% indeterminacy.
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% info=5 -> BK rank condition not satisfied.
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% info=6 -> The jacobian matrix evaluated at the steady state is complex.
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% info=9 -> k_order_pert was unable to compute the solution
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% Copyright (C) 1996-2018 Dynare Team
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%
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