我使用gnuplot生成直方图，效果很好，但我无法改变条形的颜色（不再）。他们只是忽略我设置的值并使用默认值。我正在使用这个gnuplot脚本：
set terminal png nocrop enhanced font arial 8 size 1024,768
set output '/tmp/output.png'
set border 3 front linetype -1 linewidth 1.000
set boxwidth 0.75 absolute
set style fill solid 1.00 border -1
set grid
set grid layerdefault linetype 0 linewidth 1.500, linetype 0 linewidth 1.500
set key outside right top vertical Left reverse enhanced autotitles columnhead nobox
set key invert samplen 4 spacing 1 width 0 height 0
set style histogram rowstacked title offset character 0, 0, 0
set datafile missing '-'
set style data histograms
set xtics border in scale 1,0.5 nomirror rotate by -45 offset character 0, 0, 0
set xtics ("10" 0.00000,"20" 1.00000,"30" 2.00000,"40" 3.00000,"50" 4.00000,"60" 5.00000,"70" 6.00000,"80" 7.00000,"90" 8.00000,"100" 9.00000)
set title "Multi-Histogram"
set ylabel "Meine Y Achse"
set xlabel "X-Achse"
set yrange [ 0 : 100 ] noreverse nowriteback
set ytics(10,20,30,40,50,60,70,80,90,100)
i = 5
# SETTING COLOR OF BARS
set style line 1 lt 1 lc rgb "green"
set style line 2 lt 1 lc rgb "yellow"
set style line 3 lt 1 lc rgb "red
plot '/tmp/9619555_data.dat' using (100.*$2/$24):(0.5):($2>0?1:2):xtic(1) w boxes lc variable, for [i=2:4] '' using (100.*column(i)/column(5)) title column(i)
这是我的数据文件：
X leicht mittel stark total
1 20 60 20 100
2 10 30 60 100
3 30 35 35 100
4 20 60 20 100
5 90 5 5 100
6 25 25 50 100
7 33 33 34 100
8 10 10 80 100
9 40 20 40 100
10 70 5 25 100
酒吧颜色旁边的一切都适合我，...我的风格怎么样？