Passing variables to plot function

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Hari 2016-4-13

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评论： Muhammad Usman Saleem 2016-4-15

I have the following plot function

plot([2,7],[3,3],'lineWidth', 40);

Instead of [2,7], I want to pass two variables d1 and d2 that has a set of values stored in it. Can someone please help me with that?

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dpb 2016-4-13

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Well, it would seem pretty straightforward,

plot(d1,d2,'lineWidth', 40);

assuming X, Y values are in d1, d2, respectively, and they're the same length vectors.

See

doc plot % for details on using it

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Hari 2016-4-13

Thanks a lot! but the Y value is constant. The two values in X are stored as array of values in two variables. If suppose d1 and d2 has arrays of values then, passing them would look like

plot([d1,d2],[3,3],'lineWidth', 40);

I am sure this won't work!

dpb 2016-4-13

I'm sure I don't understand from the description. What are the sizes of the various variables and what do you actually want plotted?

The general answer is that plot expects an X and Y array of commensurate length; if vectors orientation doesn't matter. You can do whatever manipulations you need with the variables to build the desired X and Y, plot doesn't care how you write the arrays as long as it is valid syntax that could be written to store the result as a variable.

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Muhammad Usman Saleem 2016-4-13

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https://ww2.mathworks.cn/matlabcentral/answers/278800-passing-variables-to-plot-function#answer_217765

编辑：Muhammad Usman Saleem 2016-4-13

在 MATLAB Online 中打开

let see it what you want

>> d1=[1 3 5 6] % create a vector as x for plot
d1 =
       1     3     5     6
>> d2=[4 5 0 10] % create a vector as y for plot
d2 =
       4     5     0    10
>> plot(d1,d2,'lineWidth', 40);