plot contributions
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function plot_contributions(tagn, tagv, dseriesdata, params)
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% function plot_contributions(tagn, tagv, dseriesdata, params)
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% Return the lhs, rhs of an equation and the line it was defined
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% on given its tag
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%
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% INPUTS
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% tagn string tag name
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% tagv string tag value
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% dseriesdata matrix nobs x n endogenous in equation
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% params struct params.param_name = param_value
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%
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% OUTPUTS
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% None
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%
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% SPECIAL REQUIREMENTS
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% none
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% Copyright (C) 2017 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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global M_;
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jsonfile = [M_.fname '_original.json'];
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if exist(jsonfile, 'file') ~= 2
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error(['Could not find ' jsonfile]);
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end
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% Get equation
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jsonmodel = loadjson(jsonfile);
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jsonmodel = jsonmodel.model;
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[lhs, rhs, ~] = getEquationByTag(jsonmodel, tagn, tagv);
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w% replace variables with dseriesdata.variablename
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for i = 1:length(dseriesdata.name)
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rhs = strrep(rhs, [dseriesdata{i}.name{:} '('], ['dseriesdata.' dseriesdata{i}.name{:} '(']);
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end
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% create inline function for rhs
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rhsfunc = inline(rhs);
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% construct call
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rhsfuncargs = argnames(rhsfunc);
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nargs = length(rhsfuncargs);
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parameters = cell(nargs-1, 1);
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for i = 2:nargs
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parameters{i-1} = params.(rhsfuncargs{i});
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end
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contribution = zeros(dseriesdata.nobs, nargs+1);
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funceval = rhsfunc(dseriesdata, parameters{:});
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contribution(:, 1) = funceval.data;
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nvars = length(dseriesdata.name);
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dseriesdatabak = dseriesdata;
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dseriesdatazero = dseries(zeros(dseriesdata.nobs, nvars), ...
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dseriesdata.firstdate, ...
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dseriesdata.name);
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for i = 1:nvars
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dseriesdata = dseriesdatazero;
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dseriesdata{dseriesdatabak.name{i}} = dseriesdatabak{i};
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funceval = rhsfunc(dseriesdata, parameters{:});
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contribution(:, i+1) = funceval.data;
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end
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figure('Name', lhs);
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plot(1:dseriesdata.nobs, contribution)
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seriesnames = dseriesdata.name;
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legend('All Endogenous',seriesnames{:})
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end
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@ -0,0 +1,27 @@
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%
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% Run using command: dynare var json=compute
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%
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var ffr, unrate, cpi;
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varexo e_ffr, e_unrate, e_cpi;
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model;
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[eqnum='ffr']
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ffr = adl(ffr, 'p_ffr_ffr', 2) + adl(unrate, 'p_ffr_unrate', 1) + adl(cpi, 'p_ffr_cpi', 1);
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[eqnum='unrate']
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unrate = adl(unrate, 'p_ffr_unrate', 6) + adl(cpi, 'p_unrate_cpi', 6);
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[eqnum='cpi']
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cpi = adl(ffr, 'p_cpi_ffr', 6) + adl(cpi, 'p_cpi_cpi', 6);
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end;
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mydata = dseries(rand(30, 3), 1, {'ffr', 'unrate', 'cpi'});
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params.p_ffr_ffr_lag_1 = 1;
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params.p_ffr_ffr_lag_2 = 2;
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params.p_ffr_unrate_lag_1 = 3;
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params.p_ffr_cpi_lag_1 = 4;
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plot_contributions('eqnum', 'ffr', mydata, params);
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