Help needed with the find function

Hello everyone, I have this section of code. I want to find the closest node among the two sets of base stations. The way i am doing it is like this but the find function gives me an error.

closest_dist=min(distance_ua(iduser,:),distance_ur(iduser,:));
closest_node=(find(distance_ua(iduser,:)==closest_dist)) || (find(distance_ur(iduser,:)==closest_dist));

[Geoff Hayes]

Aftab - wouldn't the closes to the ABS or RBS be the minimum of closest_abs and closest_rbs or am I misunderstanding something?

[Aftab Ahmed Khan]

Hi Geoff, I just amended the question to explain it more properly.

Answer 1

[Guillaume]

Note that using

indices = find(x == min(x))

only makes sense if you have several values equal to the minimum and you want to get the indices of all these values. Otherwise,

[~, index] = min(x)

is a more efficient way of getting the index of the first minimum.

Assuming, that the number of columns in distance_ua and distance_ur is the same and that the indices in distance_ua and distance_ub mean the same, then:

d_ua_ur = [distance_ua(iduser, :), distance_ur(iduser, :)];
closest_abs_or_rbs = mod(find(d_ua_ur == min(d_ua_ur)) - 1, size(distance_ua, 2)) + 1

edit: missing closing bracket

[Aftab Ahmed Khan]

Hi, Yes the number of columns in both the matrices is the same but it gives me an error of "Not enough input arguments" with the function mod.

[Guillaume]

Sorry, there was a missing closing bracket. Fixed now

[Aftab Ahmed Khan]

I noticed that earlier but still it gives the same error.

[Aftab Ahmed Khan]

Done, thanx.