 plot [0:12][19000:26000]'pi00.l' with linespoints,'pi01.l' with linespoints,'pi02.l' with linespoints,'pi10.l' with linespoints,'pi12.l' with linespoints,'pi100.l' with linespoints,'pi0.l' with linespoints,'pi1.l' with linespoints,'pi2.l' with linespoints
set ylabel 'Frequency (cm-1)'
set title 'Comparison of Emission experiment with Fast Ion Beam expt'
replot