How can I delete elements in a vector depending on the difference between them?

Hi

I would like to delete certain elements in a vector so that I end up with a vector in which the difference between one element and the consecutive one is bigger than a given treshold?

Example:

a = [1 2 3 4 5 6 7 8 9];

treshold = 2;

And I want to end up with b = [1 4 7];

Many thanks in advance.

Answer 1

[the cyclist]

Here is a very straightforward method:

a = [1 2 3 4 5 6 7 8 9];

b = a;
threshold = 2;

idx = 1;

while idx < numel(b-1)
    if b(idx+1) <= b(idx) + threshold
        b(idx+1) = [];
    else
        idx = idx + 1;
    end
end

[Victor Lejona]

That works fine, many thanks! I found quite useful how you change the size of the array within the while loop, what you couldn't do in a for loop.