How do I plot X = 0 and X = 1/2?

I need to plot X = 0, and X = 1/2 in a 2d graph.

Thank you.

[Image Analyst]

Do you have y values? Or is this to be a bar chart?

[Poojitha Ariyathilaka]

I don't think there you need anymore explanation on the question. How to plot x = 0 and x = 1/2 in MATLAB?

[Rik]

It does though. The answers are different depending on whether you're talking about a bar chart, a line plot (in which case: do you want a line or a point at some y value?), or another option.

[Poojitha Ariyathilaka]

Oh, just don't be kid that much. If you take x = 1/2, you have a perpendicular line across x = 1/2 point on the x-y plane. That's what it needs. If you need you may take a limited range for y, say -500 to +500 (if you can't take it from -infinity to +infinity). When we gonna plot on matlab it's always a liniar graph in general, unless it is specified. So, no point of asking whether it is a bar or a pie... 😁 In the other words, please excuse and show me what is a bar chart of x = 0 or x = 1/2, coz I have never heard of.

[Rik]

I don't think pushing people to provide a good problem definition is childish, if that is what you mean.

Here you have code to create a bar chart for x=0 and x=1/2:

figure(1),clf(1),barh([0 0.5]),axis([-0.5 1.5 0 3])

Answer 1

[Azzi Abdelmalek]

x1=0.5*ones(1,10)
x2=zeros(1,10)
y=linspace(-10,10,numel(x))
plot(x1,y,x2,y,'linewidth',2)

[Poojitha Ariyathilaka]

This gives out nothing.

[Rik]

What exact code did you run to come to that conclusion?

[Poojitha Ariyathilaka]

What else... There is only one code given here. oops

Answer 2

[Steven Lord]

Use the xline function.

[Poojitha Ariyathilaka]

It looks like an answer to the point. But if you please give me a small code with that function to create x = 1/2 line, I would be grateful. Thank you. (R2018a)

[Steven Lord]

This function was introduced in release R2018b so you will not be able to use it since you're using release R2018a. But if you can upgrade to release R2018b or later see the first example on the documentation page for this function.

doc xline