# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'hsteps_histogram.1.png'
set border 3 front lt black linewidth 2.000 dashtype solid
unset key
set style line 11  linecolor rgb "grey50"  linewidth 2.000 dashtype (4.00, 10.00) pointtype 1 pointsize default
set style line 12  linecolor variable linewidth 2.000 dashtype solid pointtype 1 pointsize default
set style data lines
set xtics border in scale 0,0 mirror norotate  autojustify
set xtics  norangelimit 
set xtics   ()
unset ytics
set title "Stacked histogram constructed from plot style hsteps" 
set xrange [ 0.00000 : 7.00000 ] noreverse
set yrange [ 0.00000 : 80.0000 ] noreverse
set bmargin  4
NO_ANIMATION = 1
## Last datafile plotted: "$data"
plot $data using 1:3:(0.5):xtic(2) ls 11 with hsteps link,      $data using 1:3:(0.5):1       ls 12 with hsteps pillar fs solid 0.5 border,      $data using 1:4:(0.5)         ls 11 with hsteps link,      $data using 1:4:(0.5):1       ls 12 with hsteps pillar fs transparent pattern 1 border