How can i make a graph only with numerical values?

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Jane
Jane 2011-10-25
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

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回答（2 个）

Naz
Naz 2011-10-25
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')
Walter Roberson
Walter Roberson 2011-10-25
Perhaps a 2D spline would be appropriate for this situation.

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