[Matlab] Saving 2D data in ASCII with matlab

function SaveDataAscii(data,filename,FileHead,Gformat) % to save a 2d array into a ascii file as what you see in array editor %     a format option is also provided % Usage: %     SaveDataAscii(data,filename,FileHead,Gformat) % e.g., %       my2ddata=rand(3,5); %       SaveDataAscii(my2ddata,'myrand2dtest.dat','it is a test','%7.4f'); isHeader=1; if nargin==3    Gformat='%10.4f'; elseif nargin==2    isHeader=0;    Gformat='%10.4f'; elseif nargin~=4    help SaveDataAscii    return end if (length(FileHead)==0)    isHeader=0; end % open the file fid=fopen(filename,'w'); if isHeader==1    fprintf(fid,['%% ',FileHead]);    fprintf(fid,'\n'); end % write the datablock for i=1:size(data,1)     for j=1:size(data,2)         fprintf(fid,Gformat,data(i,j));     end;     fprintf(fid,'\n'); end; fclose(fid);