Closest number problem in m-file

I need more help..

I have script looks like this

A = [2 5 9 15];

f = input('Enter input : ');

[val, idx]=sort(abs(f-A));

[val, idx]=min(abs(f-A));

A(idx)

If the input I enter is 3

Of course the output of A(idx) was 2

But I want the value output are 5 (the second closest of 3).

As well as for different inputs.

Please help me..

Thanks before

Answer 1

[KL]

[val, idx]=sort(abs(f-A));
A(idx(2))

[Guillaume]

For the first line, even better if you're not using val:

[~, idx] = sort(abs(f-A));

which makes it clear that you only want the indices.

[KL]

true, I just copy pasted her code

[Yuli Hartini]

Thank you guys..

This is very helpful.