reset

set xrange [4.86:4.93]

set title "Eichung der Hallsonde"
set xlabel "[Hallspannung U_{H} in V]"
set ylabel "[Magnetische Feldst{\344}rke B in T]"
set grid xtics ytics

f(x) = m * x + a
fit f(x) 'DatenEich.txt' via m,a

plot 'DatenEich.txt' title "Messwerte" lt 1, f(x) title "Eichgerade" lt 1

set output "Eich.eps"
set term postscript enhanced eps color; replot