How can i make a graph only with numerical values?

Hello. I wonder if i can make a graph without any function about my data. I only have numerical values.

For example,

(x,y)=(1,3), (2,4), (5, 6)...

Value y is not a function of x.

In this situation, how can i draw a graph? Help me ! T.T

Answer 1

[Naz]

x=[1 2 3]; % or x=1:3

y=[3 4 6];

plot(x,y);

it will plot a sequence of points. If you dont want them to be connected, you can set some parameters, for example:

plot(x,y,'o');

You can further simplify to:

plot(y,'o')

Answer 2

[Walter Roberson]

Perhaps a 2D spline would be appropriate for this situation.