function presc = write_presc(varargin)

mkdir(struct2str);
cd varargin;

fid = fopen('TumorDosePlus.bin','wb');
fwrite(fid,varargin.x_count,'int');
fwrite(fid,varargin.y_count,'int');
fwrite(fid,varargin.z_count,'int');
fwrite(fid,varargin.Nind,'int32');
fwrite(fid,varargin.non_zero_indices,'int32');
fwrite(fid,varargin.non_zero_values,'single');
fclose(fid);
fid = fopen('TumorDoseMinus.bin','wb');
fwrite(fid,varargin.x_count,'int');
fwrite(fid,varargin.y_count,'int');
fwrite(fid,varargin.z_count,'int');
fwrite(fid,varargin.Nind,'int32');
fwrite(fid,varargin.non_zero_indices,'int32');
fwrite(fid,varargin.non_zero_values,'single');
fclose(fid);

cd ..;