set t pngc enh font "Arial,10" si 480,360
set ou "multi_commonxaxis.png"
set sa 200
unset k
set yr [-0.1:1.1]
set yti 0.0,0.2,1.0
set g x
set multi lay 2,1
#
set or 0,0.46
set si 1, 0.45
set xti format ""
set yl "Y1"
p sin(x)**6 + 0.5*sin(2*x)**4*rand(0)
#
set si 1, 0.54
set xl "Time [s]" font "Times,14"
set xti format "%.1f"
set yl "Y2"
p cos(x)**8 + 0.1*(rand(0)-0.5) lc rgb "dark-green"
unset multi