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--- a +++ b/gmm_results.m @@ -0,0 +1,109 @@ +# Copyright (C) 2003,2004 Michael Creel michael.creel@uab.es +# under the terms of the GNU General Public License. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +# Copyright (C) 2003 Michael Creel michael.creel@uab.es +# under the terms of the GNU General Public License. +# The GPL license is in the file COPYING +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +# Copyright (C) 2003 Michael Creel michael.creel@uab.es +# under the terms of the GNU General Public License. +# The GPL license is in the file COPYING +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +function [theta, V, obj_value] = gmm_results(theta, data, weight, moments, momentargs, names, title, unscale, control) + + if nargin < 9 + [theta, obj_value, convergence] = gmm_estimate(theta, data, weight, moments, momentargs); + else + [theta, obj_value, convergence] = gmm_estimate(theta, data, weight, moments, momentargs, control); + endif + + + m = feval(moments, theta, data, momentargs); # find out how many obsns. we have + n = rows(m); + + if convergence == 1 + convergence="Normal convergence"; + else + convergence="No convergence"; + endif + + V = gmm_variance(theta, data, weight, moments, momentargs); + + # unscale results if argument has been passed + # this puts coefficients into scale corresponding to the original data + if nargin > 7 + if iscell(unscale) + [theta, V] = unscale_parameters(theta, V, unscale); + endif + endif + + [theta, V] = delta_method("Parameterize", theta, {data, moments, momentargs}, V); + + n = rows(data); + k = rows(theta); + se = sqrt(diag(V)); + + printf("\n\n******************************************************\n"); + disp(title); + printf("\nGMM Estimation Results\n"); + printf("BFGS convergence: %s\n", convergence); + printf("\nObjective function value: %f\n", obj_value); + printf("Observations: %d\n", n); + + junk = "X^2 test"; + df = rows(weight) - rows(theta); + if df > 0 + clabels = str2mat("Value","df","p-value"); + a = [n*obj_value, df, 1 - chisquare_cdf(n*obj_value, df)]; + printf("\n"); + prettyprint(a, junk, clabels); + else + disp("\nExactly identified, no spec. test"); + end; + + # results for parameters + a =[theta, se, theta./se, 2 - 2*normal_cdf(abs(theta ./ se))]; + clabels = str2mat("estimate", "st. err", "t-stat", "p-value"); + printf("\n"); + prettyprint(a, names, clabels); + + printf("******************************************************\n"); +endfunction

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