set size 0.5,0.5 set terminal postscript eps "Helvetica" 11 set output 'lym1-17.eps' set key left top box set title 'Lymph (17, 14%)' set ytics 500 set xtics 200 set xlabel "x" set ylabel "position" plot "resultslym1-17.dat" using 1:2 title "before(70, 0)" with lines, \ "resultslym-17.dat" using 1:3 title "after(59, 0)" with lines