set terminal epslatex color colortext
set output "2_2.eps"
set xlabel '$T/K$'
set ylabel '$⟨U\indices{_J^2}⟩/R$'
set xrange [0:300]
set yrange [0:0.00007]
set pointsize 2
plot "data/2_2-Johnson-Temp.dat" i 1 using 1:2 with linespoints title columnheader(1),\
     "data/2_2-Johnson-Temp.dat" i 2 using 1:2 with linespoints title columnheader(1)