# if you call gnuplot with the "with lines" option on this file, 
# it will draw lines between  (1.0,2.1) and (1.1,7.3), between
# (1.1,7.3) and (1.2,3.9), and so on, but NOT between (1.3,-2.1)
# and (1.4,-1.7) because of the blank line.
1.0	2.1
1.1	7.3
1.2	3.9
1.3	-2.1

1.4 	-1.7