how to calculate closest points in a row matlab?

i have a row 0.7422 0.0436 1 0.6040 0.057

in this row i need to find closest distance from 3rd col point which is 0.6040 the ans should be 0.7422

[Star Strider]

The ‘third col point’ is actually 1, not 0.6040 which is the fourth, but the answer is the same regardless.

[Image Analyst]

I'm not sure I understand the question. Do you want to

1. find out which element has a value closest to the value of element 3, OR
2. find out which pairs of elements have the smallest difference between their values?

Which one? Your subject line seems to indicate #2 but the body of your post seems to ask #1, so which is it? Or is it something else?

Answer 1

[Star Strider]

One approach:

V = [0.7422 0.0436 1 0.6040 0.057];
idx = 3;
[~,Vidx] = min(abs(V(idx) - V(V~=V(idx))));
Out = V(Vidx)

Out =
       0.7422