1function scaleout = perr1graph(imf,firstl1,firsth1,...
2                         nrow,ncol,nstp,xlab,ylab,XTick,YTickIndx,scaleIndx)
3%   imf: row: "nstp" time horizon (in the graphics), column: "nrow "variables (row in
4%             the graphics), 3rd D: across "ncol" different situations (column in
5%             the graphics)
6%   nrow:  # of rows for the graphics
7%   ncol:  # of columns for the graphics
8%   YTickIndx:  1: enable YTick; 0: disable
9%   scaleIndx:  1: enable scale along Y-axis; 0: disable
10%function scaleout = imc2errgraph(imf,firstl1,firsth1,...
11%                                  firstl,firsth,nvar,imstp,xlab,ylab)
12%     imc2errgraph: impulse, c (column: shock 1 to N), 2 error bands, graph
13%     imf:  impulse responses, column (responses to 1st shock, responses to 2nd shock
14%               etc), row (impusle steps),
15%     firstl1: lower band, .68
16%     highth1: high band, .68
17%     firstl: lower band, .90
18%     highth: high band, .90
19%     nvar: number of variables
20%     imstp:  step of impulse responses
21%     xlab,ylab:   labels
22%
23%  See imrgraph, imcerrgraph, imrerrgraph
24%
25% Copyright (C) 1997-2012 Tao Zha
26%
27% This free software: you can redistribute it and/or modify
28% it under the terms of the GNU General Public License as published by
29% the Free Software Foundation, either version 3 of the License, or
30% (at your option) any later version.
31%
32% It is distributed in the hope that it will be useful,
33% but WITHOUT ANY WARRANTY; without even the implied warranty of
34% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
35% GNU General Public License for more details.
36%
37% If you did not received a copy of the GNU General Public License
38% with this software, see <http://www.gnu.org/licenses/>.
39%
40
41t = 1:nstp;
42nrow
43ncol
44
45temp1=zeros(ncol,1);
46temp2=zeros(ncol,1);
47maxval=zeros(nrow,1);
48minval=zeros(nrow,1);
49for i = 1:nrow
50   for j = 1:ncol
51      %jnk1=max(firsth(:,i,j));
52      %jnk2=max(firstl(:,i,j));
53      jnk3=max(firsth1(:,i,j));
54      jnk4=max(firstl1(:,i,j));
55      jnk5=max(imf(:,i,j));
56
57      temp1(j)=max([jnk3 jnk4 jnk5]);
58      %
59      %jnk1=min(firstl(:,i,j));
60      %jnk2=min(firsth(:,i,j));
61      jnk3=min(firstl1(:,i,j));
62      jnk4=min(firsth1(:,i,j));
63      jnk5=min(imf(:,i,j));
64
65      temp2(j)=min([jnk3 jnk4 jnk5]);
66	end
67   maxval(i)=max(temp1);
68   minval(i)=min(temp2);
69end
70
71scaleout = [maxval(:) minval(:)];
72
73%--------------
74%  Column j: Shock 1 to N; Row i: Responses to
75%-------------
76figure
77rowlabel = 1;
78for i = 1:nrow      % column: from top to bottom
79   columnlabel = 1;
80
81   if minval(i)<0
82      if maxval(i)<=0
83         yt=[minval(i) 0];
84		else
85         yt=[minval(i) 0 maxval(i)];
86		end
87   else % (minval(i) >=0)
88      if maxval(i) > 0
89         yt=[0 maxval(i)];
90		else % (identically zero responses)
91			yt=[-1 0 1];
92		end
93	end
94
95
96   scale=[1 nstp minval(i) maxval(i)];
97   for j = 1:ncol        % row: from left to right
98      k1=(i-1)*ncol+j;
99      subplot(nrow,ncol,k1)
100      plot(t,imf(:,i,j),t,firstl1(:,i,j),'--',t,firsth1(:,i,j),'--')
101                %t,[firstl(:,i,j) firsth(:,i,j)],':');
102      grid;
103      if scaleIndx
104         axis(scale);
105      end
106      %set(gca,'YLim',[minval(i) maxval(i)])
107      %
108		set(gca,'XTick',XTick)
109      if YTickIndx
110         set(gca,'YTick',yt)
111      end
112
113      if i<nrow
114			set(gca,'XTickLabelMode','manual','XTickLabel',[])
115		end
116      %set(gca,'XTickLabel',' ');
117      if j>1
118         set(gca,'YTickLabel',' ');
119      end
120      if rowlabel == 1
121         %title(['x' num2str(j)])
122         %title(eval(['x' num2str(j)]))
123			title(char(xlab(j)))
124      end
125      if columnlabel == 1
126         %ylabel(['x' num2str(i)])
127         %ylabel(eval(['x' num2str(i)]))
128			ylabel(char(ylab(i)))
129      end
130      columnlabel = 0;
131   end
132   rowlabel = 0;
133end
134