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function scaleout = imc2errgraph(imf,firstl1,firsth1,...
firstl,firsth,nvar,imstp,xlab,ylab,XTick)
% scaleout = imc2errgraph(imf,firstl1,firsth1,...
% firstl,firsth,nvar,imstp,xlab,ylab,XTick)
% imc2errgraph: impulse, c (column: shock 1 to N), 2 error bands, graph
% imf: impulse responses, column (responses to 1st shock, responses to 2nd shock
% etc), row (impusle steps),
% firstl1: lower band, .68
% highth1: high band, .68
% firstl: lower band, .90
% highth: high band, .90
% nvar: number of variables
% imstp: step of impulse responses
% xlab,ylab: labels
% Xtick: tick on x-axis; e.g., [1 12 36]; if [], no ticks
%-----------------------
% scaleout: gives out max and min for each row of graphs
%
% See imrgraph, imcerrgraph, imrerrgraph
%
% Copyright (C) 1997-2012 Tao Zha
%
% This 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 3 of the License, or
% (at your option) any later version.
%
% It 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.
%
% If you did not received a copy of the GNU General Public License
% with this software, see <http://www.gnu.org/licenses/>.
%
t = 1:imstp;
temp1=zeros(nvar,1);
temp2=zeros(nvar,1);
maxval=zeros(nvar,1);
minval=zeros(nvar,1);
for i = 1:nvar
for j = 1:nvar
jnk1=max(firsth(:,(j-1)*nvar+i));
jnk2=max(firstl(:,(j-1)*nvar+i));
jnk3=max(firsth1(:,(j-1)*nvar+i));
jnk4=max(firstl1(:,(j-1)*nvar+i));
jnk5=max(imf(:,(j-1)*nvar+i));
temp1(j)=max([jnk1 jnk2 jnk3 jnk4 jnk5]);
%
jnk1=min(firstl(:,(j-1)*nvar+i));
jnk2=min(firsth(:,(j-1)*nvar+i));
jnk3=min(firstl1(:,(j-1)*nvar+i));
jnk4=min(firsth1(:,(j-1)*nvar+i));
jnk5=min(imf(:,(j-1)*nvar+i));
temp2(j)=min([jnk1 jnk2 jnk3 jnk4 jnk5]);
end
maxval(i)=max(temp1);
minval(i)=min(temp2);
end
scaleout = [maxval(:) minval(:)];
%--------------
% Column j: Shock 1 to N; Row i: Responses to
%-------------
%figure
rowlabel = 1;
for i = 1:nvar
columnlabel = 1;
if minval(i)<0
if maxval(i)<=0
yt=[minval(i) 0];
else
yt=[minval(i) 0 maxval(i)];
end
else % (minval(i) >=0)
if maxval(i) > 0
yt=[0 maxval(i)];
else % (identically zero responses)
yt=[-1 0 1];
end
end
scale=[1 imstp minval(i) maxval(i)];
for j = 1:nvar
k1=(i-1)*nvar+j;
k2=(j-1)*nvar+i;
subplot(nvar,nvar,k1)
plot(t,imf(:,k2),t,[firstl1(:,k2) firsth1(:,k2)],'--',...
t,[firstl(:,k2) firsth(:,k2)],'-.',t,zeros(length(imf(:,k2)),1),'-');
grid;
axis(scale);
%set(gca,'YLim',[minval(i) maxval(i)])
%
set(gca,'XTick',XTick)
set(gca,'YTick',yt)
if i<nvar
set(gca,'XTickLabelMode','manual','XTickLabel',[])
end
%set(gca,'XTickLabel',' ');
if j>1
set(gca,'YTickLabel',' ');
end
if rowlabel == 1
%title(['x' num2str(j)])
%title(eval(['x' num2str(j)]))
title(char(xlab(j)))
end
if columnlabel == 1
%ylabel(['x' num2str(i)])
%ylabel(eval(['x' num2str(i)]))
ylabel(char(ylab(i)))
end
columnlabel = 0;
end
rowlabel = 0;
end
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