compact way to calculate euclidean distance among points

1 次查看（过去 30 天）
Sim
Sim 2022-10-11
编辑： Sim 2022-10-12
Ran in:
What is a compact way to calculate the euclidean distance among point "a" and the four points "b" ?
% Input:
a = [0,0]; % x_a, y_a
b = [0,1; % x_b, y_b
2,1;
1,1;
1,3];
% Output:
% A non-compact solution, including the visualization of points and distances (lines)
hold on
plot(a(:,1),a(:,2),'o','markerfacecolor','r') % point "a"
plot(b(:,1),b(:,2),'o','markerfacecolor','r') % points "b"
for i = 1 : 4
d(i,:) = sqrt( (a(:,1)-b(i,1))^2 + (a(:,2)-b(i,2))^2 ); % euclidean distance
plot([a(:,1), b(i,1)], [a(:,2), b(i,2)]) % lines connecting point "a" to points "b"
end
hold off
axis equal
d
d = 4×1
1.0000 2.2361 1.4142 3.1623

请先登录，再回答此问题。

采纳的回答

Torsten
Torsten 2022-10-11
Ran in:
% x_a, y_a
a = [0,0];
% x_b, y_b
b = [0,1;
2,1;
1,1;
1,3];
D = pdist2(a,b)
D = 1×4
1.0000 2.2361 1.4142 3.1623

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Statistics and Machine Learning Toolbox 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by