reset set terminal windows set title "Exp02i distributionNbrOfII <0.8,0.8+a,1.0> - distributionII <1.0>" set xlabel "a" 0.0, 0.0 set key right bottom set ylabel "average nbr of clusters" textcolor lt 1 set y2label "average card(T) of a cluster" textcolor lt 2 set y2range [0.0 : ] set xrange [0:0.2] set ytics set y2tics nomirror plot "Exp02i.dat" using 1:2 smooth sbezier ti "cluster(E)" lt 1 axis x1y1, "Exp02i.dat" using 1:3 smooth sbezier ti "card(T)" with line axis x1y2, "Exp02i.dat" using 1:2 notitle lt 3 axis x1y1, "example.dat" using 1:3 notitle lt 4 axis x1y2