gnuplot-cols

# col1   col2
3.47700 -0.70000
3.51500 12.50000
3.52000 -1.50000
3.52500 11.90000
3.52900 11.70000
3.53000 -1.50000
3.53000 -0.80000
3.53000 -1.50000
3.53000 -1.50000
3.53000 -0.80000
3.53000 -1.50000
3.53000 -0.80000
3.53000 -1.50000
3.53000 -0.80000
3.53300 11.50000
3.53700 11.30000
3.53700 11.30000
3.54000 11.10000
3.54000 -0.80000
3.54000 11.10000
3.54000 -0.80000
3.54000 -0.70000
3.54000 -0.70000
3.54000 -1.10000
3.54200 11.00000
3.54200 11.00000
3.54400 10.90000