set key right top

#set size .9,.85

set fit errorvariables
set xlabel "$\\frac{B}{\\mathrm{T}}$"
set ylabel "$\\frac{I_A}{\\mathrm{A}}$"

set decimalsign ','
set samples 5000

#set xtic 11
#set ytics 1

plot 'ronnte.dat' using 1:2 lt 1 title "10 V", 'ronnte.dat' using 1:3 lt 1 title "50 V"

set terminal latex
set out "grafronnte.tex"
replot
set out
set term win

#set print "fitronnte.txt"
#print "   f(x) = Ax^2"
#print A, " +/- ", A_err, ",   rel. chyba ", abs(A_err/A*100), " %"
#print B, " +/- ", B_err, ",   rel. chyba ", abs(B_err/B*100), " %"
#print C, " +/- ", C_err, ",   rel. chyba ", abs(C_err/C*100), " %"
set print