1 set term png size 1000,1000
2 set output "plotdata.png"
3 set title "discharging test"
11 # set xtics "1000" rotate by -90
17 set label "01:10:11 231" at 8000, 231 point pt 7 offset char 1,1
18 set label "03:12:50 255" at 9544, 255 point pt 7 offset char 1,1
20 plot "data" using 2:xticlabels(1) with lines