gnuplot：如何用聚集的堆叠直方图将总和放在钢筋上方

Question

多亏了这个问题 gnuplot rowStacked直方图：如何将总和放在bars上 及其答案，我学会了如何添加在其条形上方堆叠直方图。但是，我不知道如何使用聚集的堆叠直方图实现此目标。如下代码所示，我可以获得似乎放置在正确y坐标处的总和。

不幸的是，我不知道如何更改第二和第三个簇的X坐标，因此它们最终与第一个群集的总标签重叠。我需要做什么才能更改总和的X坐标，以便它们出现在正确的条上？

set term png size 1200, 500
set output "graph.png"
set datafile separator ","

set boxwidth 0.5
set style fill solid
set style data histograms
set style histogram rowstack

set offset -1.3,-0.3,100,0
set yrange [*:*] noextend
set xrange [*:*] noextend

set key outside
set key right top
set ylabel "Time (ms)"
set xtics font ", 10"

plot newhistogram at 0, "a.csv" u 2:xtic(1) t "Download" lc 1, \
    '' u 3:xtic(1) t "Transfer" lc 2, \
    '' u 4:xtic(1) t "Return" lc 3, \
    '' u 5:xtic(1) t "Processing" lc 4, \
    '' u 6:xtic(1) t "Wait" lc 5, \
    '' u 7:xtic(1) t "Overhead" lc 6, \
    '' u 0:($2+$3+$4+$5+$6+$7):(sprintf('%d', $2+$3+$4+$5+$6+$7)) not with labels offset 0,0.7, \
  newhistogram at 3, "b.csv" u 2:xtic(1) t "" lc 1,\
    for [i=3:7] '' u i:xtic(1) t "" lc (i - 1), \
    '' u 0:($2+$3+$4+$5+$6+$7):(sprintf('%d', $2+$3+$4+$5+$6+$7)) not with labels offset 0,0.7, \
  newhistogram at 6, "c.csv" u 2:xtic(1) t "" lc 1,\
    for [i=3:7] '' u i:xtic(1) t "" lc (i - 1), \
    '' u 0:($2+$3+$4+$5+$6+$7):(sprintf('%d', $2+$3+$4+$5+$6+$7)) not with labels offset 0,0.7

数据文件：

• a.csv

   设备，下载，传输，返回，处理，等待，开销
  查找X2 Pro，350,0,0,287,1,24
  OnePlus 8,350,29,19,410,30,138
   

• b.csv

   设备，下载，传输，返回，处理，等待，开销
  查找X2 Pro，350,0,0,293,1,26
  像素6,350,81,21,216,100,228
   

• c.csv

   设备，下载，传输，返回，处理，等待，开销
  像素6,350,0,0,436,2,43
  像素3,350,140,​​46,187,52,206
   

Answer 1

在这里，我试图清理并简化您的脚本。我将数据包含在Datablocks中，因此仅复制＆amp;糊＆amp;跑步。
检查帮助sum，帮助Columnheader ...我希望其余的是自我解释。

脚本：

### rowstacked histogram with total above bars
reset session

$DataA <<EOD
Device,Download,Transfer,Return,Processing,Wait,Overhead
Find X2 Pro,350,0,0,287,1,24
OnePlus 8,350,29,19,410,30,138
EOD

$DataB <<EOD
Device,Download,Transfer,Return,Processing,Wait,Overhead
Find X2 Pro,350,0,0,293,1,26
Pixel 6,350,81,21,216,100,228
EOD

$DataC <<EOD
Device,Download,Transfer,Return,Processing,Wait,Overhead
Pixel 6,350,0,0,436,2,43
Pixel 3,350,140,46,187,52,206
EOD

set datafile separator ","
set boxwidth 0.5
set style fill solid
set style data histograms
set style histogram rowstack

set offset -1.3,-0.3,100,0
set xrange [0:]
set xtics font ", 10" right rotate by 45
set yrange [0:*]
set ylabel "Time (ms)"
set key outside right top noautotitle

mySum(n) = sum [_i=2:7] column(_i)

plot newhistogram at 2, \
         for [i=2:7] $DataA u i:xtic(1) ti columnheader(i) lc i-1, \
         '' u ($0+1):(total=mySum(0)):(sprintf('%d', total)) w labels offset 0,0.7, \
     newhistogram at 4,\
         for [i=2:7] $DataB u i:xtic(1) lc i-1, \
         '' u ($0+4):(total=mySum(0)):(sprintf('%d', total)) w labels offset 0,0.7, \
     newhistogram at 7, \
         for [i=2:7] $DataC u i:xtic(1) lc i-1, \
         '' u ($0+7):(total=mySum(0)):(sprintf('%d', total)) w labels offset 0,0.7, \
### end of script

结果：