comparison toolboxes/MIRtoolbox1.3.2/somtoolbox/som_plotmatrix.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function som_plotmatrix(sM,D,Col,comps)
+
+%SOM_PLOTMATRIX Visualize pairwise scatter plots and histograms.
+%
+%  som_plotmatrix(sM,[sD],[Col],[comps])
+% 
+%  Input and output arguments ([]'s are optional):
+%   sM       (struct) map struct
+%   [sD]     (struct) data struct, corresponding to the map
+%            (matrix) data matrix (size dlen x dim)
+%   [Col]    (matrix) size munits x 3, color for each map unit
+%   [comps]  (vector) which components to plot (1:dim by default)
+%
+% See also: SOM_SHOW, SOM_ORDER_CPLANES.
+
+% Copyright (c) 2000 by the SOM toolbox programming team.
+% Contributed to SOM Toolbox on June 16th, 2000 by Juha Vesanto
+% http://www.cis.hut.fi/projects/somtoolbox/
+
+% Version 2.0beta juuso 140600
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%55
+
+% sM
+[munits dim] = size(sM.codebook); 
+M = sM.codebook;
+
+% sD
+if nargin>1 & ~isempty(D), 
+  if isstruct(D), D = D.data; end
+  bmus = som_bmus(sM,D);
+else D = []; bmus = []; 
+end
+
+% Col
+if nargin<3 | isempty(Col), Col = som_colorcode(sM); end
+if ischar(Col), Col = som_colorcode(sM,Col); end
+
+% comps
+if nargin<4 | isempty(comps), comps = 1:dim; end
+n = length(comps)+1;
+
+% histogram bins
+if ~isempty(D), C=D; else C=M; end
+cHbins = cell(dim,1);
+cAxis = cell(dim,1);
+for i=1:dim, 
+  if ~isempty(D), mima = [min(D(:,i)),max(D(:,i))];
+  else mima = [min(M(:,i)),max(M(:,i))];
+  end
+  cAxis{i} = mima; 
+  [dummy,cHbins{i}] = hist(mima,20);   
+end
+
+nt = 4; % number of ticks in scatter plots
+
+% visualization
+clf
+for i=1:n, 
+  for j=1:n, 
+    subplot(n,n,(i-1)*n+j); 
+    if j==1 & i==1, 
+      h=som_cplane(sM,Col); set(h,'edgecolor','none')
+    elseif i==1, 
+      ind = comps(j-1); 
+      b  = cHbins{ind};      
+      hs = hist(M(:,ind),b); 
+      h  = bar(b,hs,0.8); set(h,'EdgeColor','none','FaceColor','k'); 
+      axis on, axis tight
+      set(gca,'XTick',[],'Box','on');
+      title(sM.comp_names{ind});
+    elseif j==1, 
+      ind = comps(i-1); 
+      if ~isempty(D), 
+	b  = cHbins{ind}; 
+	hs = hist(D(:,ind),b); 
+	h  = bar(b,hs,0.8); set(h,'EdgeColor','none','FaceColor','k'); 
+	axis on, axis tight	
+	set(gca,'XTick',[],'Box','on');
+	ylabel(sM.comp_names{ind})
+      else
+	text(0.5,0.5,sM.comp_names{ind});
+	axis off
+      end
+    elseif i==j, 
+      ind = comps(i-1); 
+      h=som_cplane(sM,M(:,ind)); 
+      set(h,'edgecolor','none')
+      a = cAxis{ind}; 
+      caxis(a); v = unique([a, min(M(:,ind)), max(M(:,ind))]); 
+      vn=som_denormalize(v,sM.comp_norm{ind})'; 
+      h=colorbar('vert');
+      set(h,'YTick',v,'YTickLabel',cellstr(num2str(vn,2)));
+    elseif i<j | ~isempty(D), 
+      if i>j, i1 = i-1; i2 = j-1; else i1 = j-1; i2 = i-1; end
+      ind1 = comps(i1); ind2 = comps(i2); 
+      if i<j, 
+	som_grid(sM,'coord',M(:,[ind1 ind2]),'markersize',2,'MarkerColor',Col);
+      else
+	som_grid('rect',[size(D,1) 1],'coord',D(:,[ind1 ind2]),...
+		 'Line','none','MarkerColor',Col(bmus,:),'Markersize',2);	
+	%cla; hold on
+	%for k=1:max(bmus), 
+	%  inds = find(bmus==k); 
+	%  if any(inds), 
+	%    som_grid('rect',[length(inds) 1],'coord',D(inds,[ind1 ind2]),...
+	%	     'Line','none','MarkerColor',Col(k,:),'Markersize',2);	
+	%  end
+	%end
+      end	      
+      a = [cAxis{ind1} cAxis{ind2}]; axis(a); 
+      x = linspace(a(1),a(2),nt); xn = som_denormalize(x,sM.comp_norm{ind1})';
+      set(gca,'XTick',x,'XTickLabel',cellstr(num2str(xn,2)));
+      y = linspace(a(3),a(4),nt); yn = som_denormalize(y,sM.comp_norm{ind2})';
+      set(gca,'YTick',y,'YTickLabel',cellstr(num2str(yn,2)));
+      xlabel(sM.comp_names{ind1}), ylabel(sM.comp_names{ind2})
+    end    
+  end
+end
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%55
+