Drawing X and Y axis on 2D plot

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David Polcari 2012-6-12

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评论： Sidharth A Narayanan 2023-3-22

Hi everyone,

I have been searching for an easy way to draw the x and y axis on a plot but cannot seem to do it. For example, if I have a plot that has range [-2 10] for x and [-200 400] for y, I would like to be able to draw a line along x = 0 and y = 0. I have looked at certain functions such as axescenter but this draws the axes in the exact center so it does not work for me. The style is great but I can't get it along the axes. Anyone have any ideas?

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Walter Roberson 2012-6-12

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在 MATLAB Online 中打开

xL = xlim;
yL = ylim;
line([0 0], yL);  %x-axis
line(xL, [0 0]);  %y-axis

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Zhao Lu 2022-8-10

Thanks so much

Sidharth A Narayanan 2023-3-22

I think you interchanged the x-axis and y-axis ...

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更多回答（3 个）

Brian Russell 2021-4-30

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Why does everyone give such complicated answers to this question? The answer is xline(0) and yline(0).

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Brian Russell 2021-6-21

Thanks, Sajib, but I don't know how to move it to the top. I think an administrator has to do that. I think that in an earlier version of MATLAB, the answer at the top was the correct one, but the answer I gave must be a new feature.

Alex Henderson 2023-2-23

"Why does everyone give such complicated answers to this question?"

Probably because these functions only appeared in R2018b. Still, useful to know they're there now.

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Steven Lord 2016-9-1

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As of release R2015b you can set the axes XAxisLocation and YAxisLocation properties to 'origin' to get the axes lines to cross at the origin.

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Ben Ralph 2019-6-23

Dead link now I'm afraid.

Now here.

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Kajeen Hassan 2020-1-28

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A parametric equation to plot the function x= 1.5 sin(5t), y= 1.5 cos(3t) , plot the function for 0<=t<=2* pi. Format the plot such that the both axes will range from -2 to 2.