#!/bin/bash

CSV1=$1
CSV2=$2
OUT=$3
TITLE=$4

if [ ! -f "$CSV1" ] || [ ! -f "$CSV2"  ] ||
   [ "" == "$OUT" ] ; then
    echo "Usage: plot_dist <normal.csv> <cumulative.csv> <out.png> <title>"
    exit 1
fi

gnuplot <<EOM
set terminal png picsize 1024 768
set out '/dev/null'
plot     '$CSV1' title 'distribution' with lines
replot   '$CSV2' title 'distribution (cumulative)' axes x1y2 with lines
set ylabel  'probability'
set y2label 'probability (cumulative)'
set xlabel  'overhead (in us)'
set y2tics
set y2range [0.0:1.0]
set title '$TITLE'
set key top left
set out '$OUT'
replot
set out
EOM