create a line between two points on an already made plot

Question

Dimitris Arapidis 2013-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/86425-create-a-line-between-two-points-on-an-already-made-plot

回答： Abhishekkumar Shingala 2020-12-29

I have matrices x and y and make a plot with them. x=[0,...,85.8024]; (100 numbers) y=[0.8736,...,1.2157];(100 numbers) figure plot(x,y)

i want to create a line from A=(0,0.8736) to B=(85.8024,1.2157) on the same plot (red color).

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Answer 1

Azzi Abdelmalek 2013-9-5

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/86425-create-a-line-between-two-points-on-an-already-made-plot#answer_95885

在 MATLAB Online 中打开

add

hold on
plot([0 85.8024],[0.8736 1.2157],'r')

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Dimitris Arapidis 2013-9-5

thank you

Adam Fitchett 2019-10-23

编辑：Adam Fitchett 2019-10-23

Hi, I know this is a long time after the reply was written, but...

I tried this method and it drew the line between the two points, but after the second point the line veers at a seemingly random angle and then goes off into the distance. How do you draw the line so that it is just between the two points and doesn’t carry on after?

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