#!/usr/bin/env gnuplot

set terminal png
set output "rtt.png"
f(x) = mean_rtt
fit f(x) 'rtt.dat' u 1:2 via mean_rtt
stddev_rtt = sqrt(FIT_WSSR / (FIT_NDF + 1 ))
set title "Packets vs. RTT"
set xlabel "Packet Number"
set ylabel "RTT in usec"

plot "rtt.dat" with lines, mean_rtt w l lt 3, stddev_rtt w l lt 3 lc rgb '#bbbbdd'