Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Create a MATLAB function that can select the closest site from a list of other sites and also return the distance to that site. The function should report the distance to that site as well (L).
function [selected_site, L] = select_nearest_site(present_site, list_of_sites, x, y)
Example:
we have a list of four sites given to us:
- x = [2, 4, 1, 5]
- y = [3, 6, 5, 8]
present_site = 4
list_of_sites = [1, 2, 3] (Note: this essentially means, find me which of the 1st, 2nd, and 3rd site is closest to the present_site (4) where you use information about their positions stored in x and y)
L = distance
Example of use:
- x = [2, 4, 1, 5]
- y = [3, 6, 5, 8]
- present_site = 4
- list_of_sites = [1, 2, 3]
[selected_site, L] = select_nearest_site(4, [1 2 3], x, y)
ans:
selected_site
= 1
L
= 1.732
I've just included down below the function that I used to calculate the distances, that should be used to find L. This function calculates the distances from the point (x_c, y_c) - are the chosen points; to all the points provided by the
x_c and y_c is the chosen point.
function L = calculate_distances( x_c, y_c, x, y )
L = sqrt((x_c - x).^2 + (y_c - y).^2);
end
Example of use:
- given location (2, -1) - this is x_c and y_c
- x = [0, 2, 3]
- y = [3, 2, 4]
L = calculate_distances (2, -1, x, y)
L
= 4.4721 3.0000 5.0990
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