gnuplot单个图以不同的颜色 [英] gnuplot single plot in different colors

问题描述

我只有一列数据(例如100个样本):

I have a single column of data (say 100 samples):

plot 'file' using 1 with lines

但是此数据被细分了:10个点，然后再增加10个，依此类推...我希望每10个块以不同的颜色显示.我确实将它们过滤为10个单独的文件并使用了

But this data is segmented: 10 points, then 10 more, etc... and I'd like each block of 10 to appear in a different color. I did filter them to 10 separate files and used

plot 'file.1' with lines, 'file.2' with lines...

但是X轴变为0..10而不是0..100，并且所有10个图形都被堆叠.有没有一种简单的方法，而不必生成虚假的X数据?

But then the X axis goes 0..10 instead of 0..100 and all 10 graphs are stacked. Is there a simple way to do that without having to generate fake X data ?

推荐答案

根据您的详细数据格式，以下内容正在执行我认为您要的操作.您的假X数据"称为伪列0，请检查 help伪列.您可以使用 lc var 更改颜色，请检查 help linecolor变量.

Depending on your detailed data format... the following is doing what I think you are asking for. Your "fake x data" is called pseudocolumn 0, check help pseudocolumns. The color you can change with lc var, check help linecolor variable.

代码:

### variable line color
reset session

# create some test data
set print $Data
    do for [i=1:100] {
        print sprintf("%g", rand(0)*i)
    }
set print

plot $Data u 0:1:(int($0/10)) w lp pt 7 lc var notitle
### end of code

结果:

这篇关于gnuplot单个图以不同的颜色的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！