Clear Filters
Clear Filters

In the following code if the condition is met i want to remove those two respective elements from the array 'New'. But i get an error saying 'Index exceeds matrix dimensions'.

1 view (last 30 days)
New = [800,750,740,700,500,300];
radius=50;
for k=1:111
for i=1:length(New)
for j= (i+1):length(New)
d(i,j)= sqrt((a(k)-New(:,i)).^2+(b(k)-New(:,j)).^2); % 'a' and 'b' are two matrices of size 1*111
if (d(i,j)<=radius)
New(i) = [];
New(j) = [];
end
end
end
end

Answers (1)

Stephen23
Stephen23 on 27 Jul 2018
Edited: Stephen23 on 27 Jul 2018
This is a common beginner mistake. If you remove the first element of a four element vector, then it resizes to have three elements. But if your code still thinks the vector has four elements and you try to access the fourth element, then you will get an error. That is basically what you are doing.
Two solutions:
  1. iterate over the vector backwards.
  2. build a logical mask within the loop, and after the loop use the mask to remove all relevant elements at once.

Categories

Find more on Creating and Concatenating Matrices in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!