set title "wavelength / voltage " set xlabel "voltage[V]" set ylabel "measured wavelength / voltage[m/V]" set format y "%.2tE%+03T" plot [2800:5200] '-' using 1:2:3 title "d_1" with yerrorbars, \ '-' using 1:2:3 title "d_2" with yerrorbars,\ 1.22632E-09 title "theoritical value" 3000 1.24293E-09 5.23929E-11 2.34947E-11 3500 1.28436E-09 5.30092E-11 2.34947E-11 4000 1.31086E-09 5.33437E-11 2.34947E-11 4500 1.29146E-09 5.20411E-11 2.34947E-11 5000 1.26284E-09 5.05305E-11 2.34947E-11 EOF 3000 1.29557E-09 5.4612E-11 1.24123E-10 3500 1.30982E-09 5.40601E-11 1.24123E-10 4000 1.35837E-09 5.52769E-11 1.24123E-10 4500 1.36778E-09 5.51165E-11 1.24123E-10 5000 1.03031E-09 4.12262E-11 1.24123E-10 EOF