set term pdf fontscale 0.75 size 5in,3.5in
outfile = 'pitch_vs_acceptance.pdf'
filename = '../efield_pitch_config_35us_start/ref/pitch_vs_offset.dat'
set output outfile
set timestamp offset graph 1.044,0.7 rotate font 'Verdana,6'
set label 'plotting_scripts/pitch_vs_acceptance.gnu' at graph 1.02,0.02 rotate left font 'Verdana,6' noenhance
set label filename at graph 0.05,-0.02 font ',6' noenhance
set title '<C_p> vs acceptance'
set xlabel 'acceptance [mm]'
set ylabel '<C_p> [ppm]'

set xrange [-45:45]
set yrange [:0]
plot filename u 1:($1 != 0 ? -$5:1/0) w l not 
print outfile