plot "forestfire1d.0.05.out" using 2:3 title "0.05" with linespoints, \ "forestfire1d.0.25.out" using 2:3 title "0.25" with linespoints, \ "forestfire1d.0.50.out" using 2:3 title "0.50" with linespoints, \ "forestfire1d.0.75.out" using 2:3 title "0.75" with linespoints