new file:   plot1.R
	new file:   plot1.png
	new file:   plot2.R
	new file:   plot2.png
	new file:   plot3.R
	new file:   plot3.png
	new file:   plot4.R
	new file:   plot4.png
	new file:   plot5.R
	new file:   plot5.png
	new file:   plot6.R
	new file:   plot6.png