name a single point in a scatterplot

2012 3 7
1 个回答
回答已采纳
6 次查看（30 天）

0 个投票

Hi, can anyone tell me how to name a single point in a scatterplot? I want to add name on the top of every dot to show that each dot represent different model. My data is a 2-d data. Thank you.

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2012-3-7

0 个投票

text() the string at the position of the point.
Your plot would probably be less crowded if you were to use different dot colors for the different models.
You may wish to consider using datacursormode() to allow the user to select a point and have the model name show up.

5 个评论
显示 3更早的评论 隐藏 3更早的评论

niclo
niclo 2012-3-7
I tried to use text() but it only shows the value of my data which is number. What I need is insert name above the dots.
Walter Roberson
Walter Roberson 2012-3-7
For example,
for K = 1 : length(x)
text(x(K),y(K), sprintf('Point #%d', K));
end
niclo
niclo 2012-3-7
Sorry i am quite new in matlab.
If my x data is 11x1 double and y is 11 x 1 double. The name that i want to insert is : a e f s g j d e a f h. Can you show me how to use the loops that you shown?
Thank you.
Walter Roberson
Walter Roberson 2012-3-7
names = {'a' 'e' 'f' 's' 'g' 'j' 'd' 'e' 'a' 'f' 'h'};
for K = 1 : length(x)
text(x(K), y(K), names{K});
end
niclo
niclo 2012-3-7
Thanks a lot.This is exactly what I need. Really appreciate your help.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Annotations 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by