calculate the distance between two successive dots

Question

bil bbil 2014-3-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123023-calculate-the-distance-between-two-successive-dots

编辑： bil bbil 2014-3-25

采纳的回答： Joseph Cheng

在 MATLAB Online 中打开

Hello friends..

my table contains 79 points

*here is my code

=======================

T = zeros;

*x=0;z=0;

a=length(points);%79points

*for i = 1:a

*for j = i+1:a

x = x + 1;
d1 = norm(points(j)-points(i));
T(x,:) = d1;

        end
      end
   end
xlswrite('d:\result.xlsx',T);
========================================
*I want to calculate the distance between two successive dots ie: (point1,point2),(point3,point4),point5,point6)

*I normally get 39 distance but I got 3081 distance(because the loop it calculated the distance between all points)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Joseph Cheng 2014-3-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123023-calculate-the-distance-between-two-successive-dots#answer_130306

在 MATLAB Online 中打开

you'll have to do something like this

T = zeros;  
x=0;z=0;
a=length(points);%79points
for i = 1:2:a 
     x = x + 1;
     d1 = norm(points(i+1)-points(i));
     T(x,:) = d1;
end
xlswrite('d:\result.xlsx',T);

Since you want just points 1 and 2 , then 3 and 4, etc. we can use the i=1:2:a to increment i by 2, and compare i to i+1. This way i will be 1, 3, 5 and the compared point will be 1+1, 3+1 , 5+1 (or 2,4,6).