MATLAB: Find Several values closest to zero

Question

Hey all,

I have a simple vector containing my data and wanna find the index of its value closest to zero. At the moment, I am just doing:

     zeroIX=dsearchn(mydata,0);

However, this only gives me the very first value. If I have for example a vector like this:

    mydata= [1;2;5;0.1;0.1;0.1;2;3]

I omit all the other two values, which are exactly as far away from 0. But in this case for example, I need the index of the middle one. I read through several ideas but haven't figured out a way to find similar values close to zero. Can anyone of you help me?

Thanks in advance and best, Manuel

Answer 1

Define a small fraction..say eps of your required order...

eps = 10^-2 ;
idx = mydata<=eps ;