How to plot discrete values on the x-axis.

Hello everybody,

I haven't figured out yet how can I plot discrete values along the x-axis. I need to plot for instance:

y= [10 1 2 3 20 22 20 10 14 12];

x = [89 89 89 89 89 89 89 90 91 10];

[KSSV]

plot(x,y)

Answer 1

[Ameer Hamza]

Try this

y = [10 1 2 3 20 22 20 10 14 12]; 
x = [89 89 89 89 89 89 89 90 91 10]; 

ax = axes();
plot(y, 'r+', 'MarkerSize', 10, 'LineWidth', 2)
ax.XTickLabel = string(x);

[DAVIDE DELLA VALLE]

Thank you so much Ameer.

Just one other thing: let's assume that I have 10000 points along the x-axis, and most of them are "89". Is it possible to display just a small amount of such a digit instead of displaying all of them?

[Ameer Hamza]

Yes, but you need to describe which one to select? Or do you want them to be selected randomly?

[DAVIDE DELLA VALLE]

I would like to display all the values that appear once along the x-axis.

[Ameer Hamza]

So you want to display just one point for all repeating values. For example, just one "89" on x-axis? What about y-value?

[DAVIDE DELLA VALLE]

yes, i do.

As far as the y-values are concerned, i would like to display all of them

[Ameer Hamza]

Run the following code. Is this what you want?

y = [10 1 2 3 20 22 20 10 14 12]; 
x = [89 89 89 89 89 89 89 90 91 10]; 

plot(x, y, 'r+', 'LineWidth', 2, 'MarkerSize', 10)

[DAVIDE DELLA VALLE]

Nope, it was just an example. I am dealing with vectors much bigger than these.

[Ameer Hamza]

But the same method will apply there.