如何使用gnuplot从一列文件中制作水平线? [英] How to do horizontal lines from a one column file using gnuplot?

问题描述

仅具有一列数​​据的文件，例如:

Having a file with just one column of data like for example:

10

2

34

4.5

16

我想绘制一堆水平线，就像绘制一条从-3到3(x范围)的水平线一样，其y值等于第一行(在示例中为10)，然后重新绘制另一条水平线范围从x = [-3:3]开始，y值等于第二行(在示例中为2)，依此类推.

I'd like to plot a stack of horizontal lines as plotting a horizontal line from let's say -3 to 3 (x range) for a y value equal to the first row (10 in the example), then replot a another horizontal line ranging from x=[-3:3] with a y value equal to the second row (2 in the example), and so on.

我该怎么办?

推荐答案

使用vectors绘图样式.

plot "file" using (-3):($1):(6):(0) with vectors nohead

using表达式中的四个值是x(普通数-3)，y(第一列中的值)，dx和dy.

The four values in the using expression are x (plain number -3), y (value from first column), dx and dy.

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