set size square
#plot cos(x),sin(y) w l lc rgb "#42a4f5"
set xrange [-1.1:1.1]
set yrange [-1.1:1.1]
set xlabel "Re(V)"
set ylabel "Im(V)"
set xzeroaxis
set yzeroaxis
plot 'data' w points palette pointsize 2 pointtype 7 
;
pause mouse close