How to plot points on a line

64 次查看（过去 30 天）
jacob Mitch
jacob Mitch 2019-10-10
评论： jacob Mitch 2019-10-12
Say I have a random sequence of such as new=randn(5,1) which produces y values of
ans =
-0.9118
0.0494
1.0780
0.3082
0.2996
How would I plot these points as a line on a graph ie x=0, y=-0.9118 x=1 y=0.0494 etc or a line connecting the y values. I have tried
plot(new)
I would then like to add points to the graph as blue dots ie onto the graph of new=randn(5,1) add blue dots at the points from code such as
datapoints=
-0.9118
0.3082 or
datapoints=-0.9118 0.3082
I hope this make sense and thanks for the help.

请先登录，再回答此问题。

采纳的回答

Fabio Freschi
Fabio Freschi 2019-10-10
I suggest you to check hold on, and the LineSpec of the command plot
% your data
new = rand(5,1);
% open figure and retain current plot
figure, hold on
plot(new);
% new data points
datapoints = [-0.9118 0.3082]
% plot with blue circles
plot(datapoints,'bo')
  6 个评论
显示 4更早的评论
jacob Mitch
jacob Mitch 2019-10-12
Hi there, sorry it was just meant to be
for z=2:x
if z==x
return
jacob Mitch
jacob Mitch 2019-10-12
This may be late but you're a genius. Thank you!

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 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