以文本列作为 X 轴的 Gnuplot 绘图数据

Question

我有一个文本文件如下：

ls 10
cd 5
cut 12
awk 7
...

我想使用 gnuplot 来绘制它，并将文本列作为 X 轴：

plot 'data.txt' u 1:2

但我收到此错误：

         warning: Skipping data file with no valid points
                         ^
         x range is invalid

Answer 1

$data << EOD
ls 10
cd 5
cut 12
awk 7
EOD

# this is all just plot layout stuff; customize to taste
unset border
set tics scale 0
set xzeroaxis
set title "x coord = line number"

# use line number for x coordinate, column 1 for tic label
plot $data using 0:2:xticlabel(1) with impulse

Answer 2

检查

help xticlabels

。 试试这个：

reset session

$Data <<EOD
ls 10
cd 5
cut 12
awk 7
...  9
EOD

set boxwidth 0.7
set style fill solid 1.0
set yrange[0:]

plot $Data u 2:xtic(1) w boxes