#!/sw/bin/gnuplot
#
#	indexes.gnuplot
#	ems 2008
#
set xdata time
set grid
set timefmt "%b %d, %Y"
set datafile separator ";"
set xrange ["May 1, 2007":*]
set title "Comparison of Crude Oil Prices among OPEC and non-OPEC members \n(Data from EIA)"
set ylabel "Spot Price FOB (Dollars / Barrel)"
set xlabel "Date"
set format y "$%.0f"
set format x "%b\n%Y"
set terminal png transparent interlace \
	transparent xffffff \
        x000000 x00FF00 \
	xFF0000 x0000FF \
	size 600,500
set terminal png font "./FreeSans.ttf" 8
set output "indexes.png"
set key top left
plot    'opec.dat' using 1:2 title "OPEC (Weighted)" with linespoints, \
	'nonopec.dat' using 1:2 title "Non-OPEC Countries (Weighted)" with linespoints