reset
set keycolumns 5
set key below
set mxtics 1
set xtics 5
set logscale y

set xlabel 'fragment number'
set ylabel 'Energies of each fragment [Ht]'
set terminal eps color
set output 'Energies-Fragment.eps'
plot [0:23] [1e-13:39.9767] \
'Energies-Fragment.dat' title '' using 2:(abs($4)) with points