Clear Filters
Clear Filters

how do I average each 10 elements of a matrix?

12 views (last 30 days)
Hi,
I have an 80x1 vector and I need to average every 10 elements from first and save them to a new vector. do you have any suggestions except for the loop? (average of first 10 elements, an average of second 10 elements, ...). thank you.

Accepted Answer

Walter Roberson
Walter Roberson on 21 Apr 2021
mean10 = mean(reshape(Vector, 10, []),1)
  3 Comments
nadia naji
nadia naji on 21 Apr 2021
if the vector size is not dividable by 10, it will produce an error. is it a way for this problem?
Walter Roberson
Walter Roberson on 21 Apr 2021
frame_length = 10;
Veclen = length(Vector);
num_frame = floor(Veclen/frame_length);
num_extra = Veclen - num_frame * frame_length;
frame_means = [mean(reshape(Vector(1:end-num_extra), frame_length, []),1), mean(Vector(end-num_extra+1:end)]
This code is designed so that if there are left over samples at the end, then it takes the mean of what exists.

Sign in to comment.

More Answers (0)

Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!