Could you provide more clarification on this:- 1.) do you wish to make an application that would achieve this? 2.) or do you already have "imu" vector and now wish to get the required data?
For the 1st case, you would need to write a custom logic for doing so. If you are using Simulink, you could use rate transition block to achieve something like this.
For 2nd case, write a custom logic to store the 'n'th element into another vector. Refer the following code for a better understanding.
if true
a = magic(4)
b = a(1:16) % this vector is similar to "imu"
c=b(4:4:16) % accepting every 4th elecment.
end
Hope this helps.
