# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'cerf.1.png'
set format y "%.2f" 
set style increment default
set samples 200, 200
set style data lines
set mxtics
set mytics
set xtics border out scale 1,0.5 nomirror norotate  autojustify
set title "Voigt Profile VP(x,σ,γ)" 
set xrange [ -10.0000 : 10.0000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ 0.00000 : 0.300000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rrange [ * : * ] noreverse writeback
save_encoding = "utf8"
plot VP(x,1.53,0.0) title "σ=1.53 γ=0.00",      VP(x,1.30,0.5) title "σ=1.30 γ=0.50",      VP(x,1.00,1.0) title "σ=1.00 γ=1.00",      VP(x,0.00,1.8) title "σ=0.00 γ=1.80"