-s end-1h -e now -w 600 -h 120 -v "f(x)" -t function -E DEF:fx1=data:x1:AVERAGE DEF:fx2=data:x2:AVERAGE DEF:fx3=data:x3:AVERAGE "LINE1:fx1#00E000: x1" "LINE1:fx2#E00000: x2" "LINE1:fx3#0000E0: x3"
draw