# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 500, 350 
# set output 'histograms.8.png'
set border 3 front linetype -1 linewidth 1.000
set boxwidth 0.8 absolute
set style fill   solid 1.00 noborder
set grid nopolar
set grid noxtics nomxtics ytics nomytics noztics nomztics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid layerdefault   linetype 0 linewidth 1.000,  linetype 0 linewidth 1.000
set key bmargin center horizontal Left reverse noenhanced autotitles columnhead nobox
set style histogram rowstacked title  offset character 2, 0.25, 0
set datafile missing '-'
set style data histograms
set xtics border in scale 0,0 nomirror rotate by -45  offset character 0, 0, 0 autojustify
set xtics  norangelimit font ",8"
set xtics   ()
set ytics border in scale 0,0 mirror norotate  offset character 0, 0, 0 autojustify
set ztics border in scale 0,0 nomirror norotate  offset character 0, 0, 0 autojustify
set cbtics border in scale 0,0 mirror norotate  offset character 0, 0, 0 autojustify
set rtics axis in scale 0,0 nomirror norotate  offset character 0, 0, 0 autojustify
set title "Immigration from different regions\n(give each histogram a separate title)" 
set xlabel "(Same plot using rowstacked rather than clustered histogram)" 
set xlabel  offset character 0, -2, 0 font "" textcolor lt -1 norotate
set ylabel "Immigration by decade" 
set yrange [ 0.00000 : 900000. ] noreverse nowriteback
i = 23
plot newhistogram "Northern Europe", 'immigration.dat' using 6:xtic(1) t col, '' u 13 t col, '' u 14 t col, newhistogram "Southern Europe", '' u 9:xtic(1) t col, '' u 17 t col, '' u 22 t col, newhistogram "British Isles", '' u 10:xtic(1) t col, '' u 21 t col