Creating a vector from a set of coordinates

If I have a set of coordinates of:

x = [10.1, 5.4, 7.3, ...];

y = [2.3, 7.4, 8.8, ...];

How can I create a single vector that assigns each point to an integer such that index = [1 2 3 ...]. E.g. the point with index 1 has the coordinates of x(1), y(1)

Appreciate any help.

Answer 1

[Bjorn Gustavsson]

If you do:

r = [x(:),y(:)]; % (:) forms column-vectors of any-dimensional array.

Then you will find:

p1 = r(1,:)

HTH

[Sean Ivan Roxas]

If I have N number of x and y coordinates, how do I index each pair of coorditnates from 1 to N and store these indices in a vector?

[Fangjun Jiang]

There is no need to "store the indices". length(x), numel(x) or size(x) could return the size information if that is what you want.

Answer 2

[Fangjun Jiang]

You mean like this? There is really no need to do this. Please explain the need.

x = [10.1, 5.4, 7.3];
y = [2.3, 7.4, 8.8];
index=[x;y]';
index(1,:)

ans =

10.1000 2.3000