# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 512, 280 # set output 'transparent.2.png' set clip two set style fill transparent solid 0.50 noborder set key title "Gaussian Distribution" set key inside left top vertical Left reverse enhanced autotitles nobox set key noinvert samplen 1 spacing 1 width 0 height 0 set style function filledcurves y1=0 set title "Transparent filled curves" set xrange [ -5.00000 : 5.00000 ] noreverse nowriteback set yrange [ 0.00000 : 1.00000 ] noreverse nowriteback unset colorbox Gauss(x,mu,sigma) = 1./(sigma*sqrt(2*pi)) * exp( -(x-mu)**2 / (2*sigma**2) ) d1(x) = Gauss(x, 0.5, 0.5) d2(x) = Gauss(x, 2., 1.) d3(x) = Gauss(x, -1., 2.) GPFUN_Gauss = "Gauss(x,mu,sigma) = 1./(sigma*sqrt(2*pi)) * exp( -(x-mu)**2 / (2*sigma**2) )" GPFUN_d1 = "d1(x) = Gauss(x, 0.5, 0.5)" GPFUN_d2 = "d2(x) = Gauss(x, 2., 1.)" GPFUN_d3 = "d3(x) = Gauss(x, -1., 2.)" plot d1(x) fs solid 1.0 lc rgb "forest-green" title "μ = 0.5 σ = 0.5", d2(x) lc rgb "gold" title "μ = 2.0 σ = 1.0", d3(x) lc rgb "red" title "μ = -1.0 σ = 2.0"