Gnuplot X tic标签重叠 [英] Gnuplot x tic labels overlap

问题描述

我正在从数据文件中绘制gnuplot图表，格式如下：

I am drawing a gnuplot chart from datafile with such format:

01 value_1_1 value_2_1
02 value_1_1 value_2_1
...
01 value_1_n value_2_n

使用该命令：

plot "action.dat" using 2:xtic(1) with boxes ls 1 title "First title",\
     "action.dat" using 3:xtic(1) with boxes ls 2 title "Second title";

X tic标签从第一列加载。当端子太小时，标签开始重叠。如果x tic标签与先前的标签重叠，该如何隐藏？或者，至少，如何只绘制第n个标签？

X tic labels are loaded from the first column. When terminal is too small, labels start to overlap. How can I hide x tic label if it overlaps previous label? Or, at least, how can I draw only n-th label?

我试图做类似的事情

set xtics 10 rotate by -90

但失败。

推荐答案

要（有效地）绘制第n个标签，您可以使用类似以下内容的方法：

To (effectively) plot every nth label, you can use something like:

plot "action.dat" using 2:xtic(int($0)%3==1 ? strcol(1):'') with boxes ls 1 title "First title"

这实际上将绘制每一个标签，但不是第n个标签的标签将被绘制为空字符串...

This will actually plot every label, but the ones that aren't the n'th label will just be plotted as empty strings ...

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