set terminal png set output "fig_HAZN.png" set title "Volocity" set xlabel "Measurement (m/s)" set ylabel "Exceedance probability (%)" set ytics ( \ "99.9" 3.090232,\ "99" 2.326348,\ "95" 1.644854,\ "90" 1.281552,\ "80" 0.841621,\ "50" 0.000000,\ "20" -0.841621,\ "10" -1.281552,\ "5" -1.644854,\ "1" -2.326348,\ "0.1" -3.090232) set xtics 1.000000 set format x "%.1f" set xrange [0.000000:10.000000] set yrange [-3.090232:3.090232] a=-0.807547 b=3.94016 f(x)=a*x+b set label "a=-0.807547, b=3.94016, r=-0.985" at graph 0,graph 1.03 set grid xtics ytics mxtics mytics plot f(x) with lines title "f(x)=a*x+b", \ "temp.prn" with points pointtype 4 linetype 4 notitle