Depth Averaged Velocities - Nanmean higher than excluded values?!

Hello! I am trying to get depth averaged velocities for a time series and have excluded values greater than and less than 1 and -1 in order to get accurate data. I have then taken the nanmean but my velocities are all higher (or lower) than the range I have kept. I'm really not sure what I'm doing wrong here! My code is:

    u = ConVel/1000;
    a = find(u>=1 & u<=-1);
    u(a) = NaN;
    u_av = nanmean(u);

But the vector I am left with has values <-4? Thank you for your help!

Answer 1

[Steven Lord]

Can you give me an example of a number that is simultaneously greater than or equal to 1 and less than or equal to -1?

You want to use the or operator | instead of the and operator &.

[B.C.]

Thank you so much!!! It worked!! I feel stupid now:)