function draw_clusters(filename, idx_filename, m_onpage, n_onpage, ymax)
%% draw clusters as figures
disp ('loading data.');

[dd,vv,cc] = tblread(filename, '\t');
[mm,nn] = size(dd);

[d,v,c] = tblread(idx_filename, '\t');
[m,n] = size(d);

%% draw each cluster in order specified by index

total_on_pages = 1;

for i = 1:0 %% don't want to print them
   subplot(m_onpage,n_onpage,total_on_pages);

   dp = dd(colon(d(i,1),d(i,2)),:);
   dp = transpose(dp(:,2:nn));
   
   plot(dp);
  %% xlabel('conditions');
   ylabel('intensity');
   title(c(i,:));
   set(gca,'YLim',[-ymax ymax]);
   set(gca,'XLim',[1 10]);
   set(gca,'XTickLabel','');
   
   total_on_pages = total_on_pages + 1;
   if (total_on_pages > (m_onpage * n_onpage))
       figure;
       total_on_pages = 1; %% restart
   end
end

%% draw each cluster in order specified by index
%% means only

figure;
total_on_pages = 1;

for i = 1:m
   %% padding
   %% m_onpage, n_onpage
   mwidth = 0.9 / m_onpage;
   mheight = 0.9 / n_onpage;
   mcoord = mod(total_on_pages - 1,m_onpage);
   ncoord = (total_on_pages - 1 - mcoord) / m_onpage;
   %%disp(strcat(num2str(mcoord * mwidth), ':', num2str(ncoord*mheight)));
   subplot('Position', [mcoord * mwidth + 0.1,1 - (ncoord + 1) * mheight - 0.03, mwidth*0.65, mheight*0.65]);

   dp = dd(colon(d(i,1),d(i,2)),:);
   sd = std(dp(:,2:nn));
   dp = mean(dp(:,2:nn));
   
   xpt = linspace(1,nn -1, nn-1);
   axis([0 (nn + 1) -3 3]);
   plot(xpt, transpose(dp), 'b-', xpt, transpose(dp-sd), 'r-', xpt, transpose(dp+sd), 'r-', xpt, transpose(dp), 'b.');
   xlabel('conditions','FontSize',8);
   ylabel('s.d. from mean','FontSize',8);
   title(strcat('cluster ', c(i,:)), 'FontSize', 8, 'Color', 'b');
   set(gca,'YLim',[-ymax ymax]);
   set(gca,'XLim',[0.5 (nn - 0.5)]);
   set(gca,'XTickLabel','');
 
   total_on_pages = total_on_pages + 1;
   if (total_on_pages > (m_onpage * n_onpage))
       figure;
       total_on_pages = 1; %% restart
   end
end