MATLAB: How to apply the same function on different rows of a vector

intervalsloopmatrix

Hello everyone,

I'm trying to apply a simple function to different rows of a vector 521×1. I want to divide the row 521 for 100 and then do the same for the row 501, 481, 461…basically every 20 rows I need to apply this division. At the end I expect to obtain a vector 26×1.

Could someone help me?

Thank you

Best Answer

If I got the question right, this is how it should work:

andr = randn(521,1) 
andrn = 1/100*andr(521:-20:1) % you can use 1/100.*(andr(521:-20:1,:)) in case there are more columns

The code will give the last value (on 521st row) first as you mentioned in the question.

Related Solutions

MATLAB: Cummulation in the rows

Try this:

X = randi(9, 234, 1E+4);                                    % Create Matrix
for k = 1:size(X,1)
    sd(k,:) = std(X(1:k,:),[],1);                           % Standard Deviation Matrix
end
RiemannIntegral = sum(X);                                   % Reimann Sum

MATLAB: How to create a vector of elements with a number of row equal to a number

Honestly I am not able to get you but perhaps you just want:

C = repelem(B,20)

Best Answer

Related Solutions

MATLAB: Cummulation in the rows

MATLAB: How to create a vector of elements with a number of row equal to a number

Related Question