function show_rap_confusion(conf,nref,nameref,ntest,nametest)
% show_rap_confusion(conf,nref,nameref,ntest,nametest)
%
% conf - confusion matrix
% nref - no of reference phonemes. 
% nameref - filename w/ reference labels (two col - index and name)
% ntest - no of test phonemes. 
% nametest - filename w/ test labels (two col - index and name)
%
% setting BW-colormap. 

% let the image out ! 
%imagesc(conf); 

% if we want the image w/o silence, must do this:
%conf = conf(1:(nref-1),1:(ntest-1))
%conf = [conf zeros(nref-1,1); zeros(1,ntest)];

%for pcolor, must complete by some junk last col and row ... 
conf = [conf zeros(nref,1); zeros(1,ntest+1)];
pcolor(conf); axis ij; 
c=colormap('gray'); colormap(flipud(c)); colorbar; 
brighten(-0.3); % a bit of darkening ... 

%%%%%%%%%%%% labels - ref. 
list_phn_ref=[];
ff=fopen(nameref,'r');
for ii=1:nref, 
  dummy=fscanf(ff,'%s',[1 1]); str=fscanf(ff,'%s',[1 1]); 
  if ii==1,
    list_phn_ref=str;
  else
    list_phn_ref=str2mat(list_phn_ref, str);
  end
end
fclose(ff);
% put them on axis 
h=gca; set (h,'fontsize',8); %set (h,'fontweight','bold');
set(h,'ytick', (1:nref) + 0.5); set (h,'yticklabel', list_phn_ref)

%%%%%%%%%%%%%% labels - test. 
list_phn_test=[];
ff=fopen(nametest,'r');
for ii=1:ntest, 
  dummy=fscanf(ff,'%s',[1 1]); str=fscanf(ff,'%s',[1 1]); 
  if ii==1,
    list_phn_test=str;
  else
    list_phn_test=str2mat(list_phn_test, str);
  end
end
fclose(ff);
% put them on axis 
h=gca; set (h,'fontsize',8); %set (h,'fontweight','bold');
set(h,'xtick', (1:ntest) + 0.5); set (h,'xticklabel', list_phn_test)