# set terminal pngcairo  background "#ffffff" enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'fillstyle.6.png'
set boxwidth 0.5 absolute
set style fill   solid 0.25 noborder
set samples 25, 25
set noxtics
set noytics
set title "A demonstration of boxes with style fill solid 0.25 noborder" 
set yrange [ 0.00000 : 120.000 ] noreverse nowriteback
plot [-10:10] 100/(1.0+x*x) title 'distribution' with boxes