How to make equally spaced symbols on a line plot

8 次查看（过去 30 天）
Em
Em 2023-7-24
编辑： Voss 2023-7-24
I have a line plot (created from an array with many many points) and I want to use symbols rather than colours to indicate the different data. Does anyone know how to do this?
I know you can't simply add 'o' at the end because this gives error message 'The end operator must be used within an array index expression'
Cheers!
  2 个评论
Em
Em 2023-7-24
The below line works just fine
plot(var1(end-1000:end,1)*10^-6, var1(end-1000:end,3)*10^9)
I want to plot it with symbols e.g.
plot(var1(end-1000:end,1)*10^-6, var1(end-1000:end,3)*10^9, 'o')

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Voss
Voss 2023-7-24
Ran in:
Do you want something like this?
x = 1:100;
y = sin(x/10);
plot(x,y) % the whole line
hold on
plot(x(1:10:end),y(1:10:end),'bo') % markers every so often
  4 个评论
显示 2更早的评论
Em
Em 2023-7-24
You're right, I didn't have the right .mat file loaded! Sorry to you or to anyone else who is viewing this - I edited my reply before I saw that you had replied.
I'm getting another error message when I include the ':10:' part of my code. Do you have any idea why this might be?
Cheers.
Voss
Voss 2023-7-24
编辑：Voss 2023-7-24
Instead of this:
plot(s9a(end-1000:10:end,1)*10^-6, s9a(end-1000:10:end,3)*10^9,'Color',c(5,:), 'o')
Do this:
plot(s9a(end-1000:10:end,1)*10^-6, s9a(end-1000:10:end,3)*10^9,'o','Color',c(5,:))
Property/Value pairs, like 'Color',c(5,:), must come at the end of the list of arguments to plot.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Line Plots 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by