storing of values in matlab

x=get(h,'Xdata')

y=get(h,'Ydata')

plot(x,y)

can we do any operation on x,y after plotting?

how can we catch the values of y at different x values?

Answer 1

[Paulo Silva]

x and y are variables, in that case they are vectors 1xn columns, you can do many operations to them.

x and y have the same size, x(1) and y(1) correspond to the first point and so on until x(end) and y(end)

[Matt Fig]

Easy points for you today, Paulo! Let's see if you can get all three of these on the exact same subject!

[Paulo Silva]

I don't care about the points, if you want I just delete easily all my accepted answers from today!

[Matt Fig]

No, Paulo... I was joking with you because these questions are all the same.

[Paulo Silva]

tell that to the OP :) I just answered the best I could to the questions :s

Answer 2

[Matt Fig]

You need to stop posting many questions on the exact same subject, take a deep breath, and figure out exactly what you are trying to do. We cannot read your mind. What does it mean to "catch the values of y at different x values"?? You have x and y, so if you want to look at them instead of plot them, do this:

[x;y]

If that isn't what you want, clarify with very descriptive words!

.

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EDIT

Perhaps you mean that you want a function which will return the y for a given x?

f = @(X) interp1(x,y,X,'nearest');
f(x(1)) % Should return y(1)