function Yt = simFILE(model, filename,Xt,Yt)% Only for intern LS-SVMlab use;%% simulate the LS-SVM model using the FILE interface to the C-file;% By default, the file 'buffer.mc' is used to pass the arguments.%% Yt = simFILE(model, filename,Xt)%% see simlssvm for use;%% Copyright (c) 2002,  KULeuven-ESAT-SCD, License & help @ http://www.esat.kuleuven.ac.be/sista/lssvmlab%% change to dir ~/matlab%%or_dir = pwd;%cd ~/matlab/;eval('Yt;','Yt=[];');% save the parameters to file    fid=fopen(filename,'wb');   fwrite(fid,model.type(1),'char');   fwrite(fid,model.nb_data,'int');   fwrite(fid,model.x_dim  ,'int');   fwrite(fid,model.y_dim,'int');      fwrite(fid,length(model.kernel_pars) ,'int');   for t=1:length(model.kernel_pars),     fwrite(fid,model.kernel_pars(t) ,'double');   end      lk = length(model.kernel_type);   fwrite(fid,lk,'int');   fprintf(fid,'%s',model.kernel_type);      eval('dyn_pars = [model.steps; model.x_delays];','dyn_pars=[];');   eval('dyn_pars = [dyn_pars;model.y_delays];',' ');   fwrite(fid,length(dyn_pars) ,'int');   for t=1:length(dyn_pars),     fwrite(fid,dyn_pars(t) ,'int');   end          % xtrain: rowwise      for j=1:model.nb_data,     for i=1:model.x_dim,       fwrite(fid,model.xtrain(model.selector(j),i), 'double');     end   end   % ytrain: columnwise   for i=1:model.y_dim     for j=1:model.nb_data       fwrite(fid,model.ytrain(model.selector(j),i), 'double');     end   end   % write alpha's: columnwise      for i=1:model.y_dim     for j=1:model.nb_data       fwrite(fid,model.alpha(j,i), 'double');     end   end   % write b   for i=1:model.y_dim,     fwrite(fid,model.b(i), 'double');   end   % Xtest: rowwise   nxt = size(Xt,1);   fwrite(fid,nxt, 'int');      for j=1:nxt,     for i=1:model.x_dim,       fwrite(fid,Xt(j,i), 'double');     end   end   % Ytest: columnwise      nyt = size(Yt,1);   fwrite(fid,nyt, 'int');      for i=1:model.y_dim,       for j=1:nyt,           fwrite(fid,Yt(j,i), 'double');       end   end      fclose(fid);   % Compute alpha & beval(['!simFILE.exe ' filename],'error(''error in C-executable, probably file ''lssvmFILE.x'' not found in current directory...'')');%status = unix(['lssvmFILE.x ' filename]);if status == 127, warning('Executable ''simFILE.x'' not found in current directory'); end% read resultsfid=fopen(filename,'r');nxt  = fread(fid,1,'int');Yt  = fread(fid,model.y_dim*nxt,'double');Yt = reshape(Yt,length(Yt)/model.y_dim, model.y_dim);fclose(fid);%% change original directory %%cd(or_dir);