# set terminal png transparent nocrop enhanced font arial 8 size 420,320 
# set output 'mgr.9.png'
set key right top Right noreverse noinvert enhanced box linetype -1 linewidth 1.000 samplen 4 spacing 1 width 0 height 0 autotitles
set title "UM1-Cell Power" 0.000000,0.000000  font ""
set xlabel "Resistance [Ohm]" 0.000000,0.000000  font ""
set ylabel "Power [W]" 0.000000,0.000000  font ""
n(x)=1.53**2*x/(5.67+x)**2
S = 1
plot [0:50] "battery.dat" t "Power" with xyerrorbars, n(x) t "Theory" w lines