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How can I average blocks of samples according to the belonging to specific classes?

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alessio tugnolo 2021-12-21

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回答： Srivardhan Gadila 2021-12-31

I have a 2D matrix with samples collected at different times.

I don't have the same number of samples for each sampling time.

How can I average blocks of samples according to the belonging to specific sampling time?

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Matt J 2021-12-21

What kind of Matlab variable do you use to define the block boundaries?

alessio tugnolo 2021-12-23

I have a cell array where for each row I have the number of belonging of each sample for each class..

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Srivardhan Gadila 2021-12-31

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You can get started by writing a for loop and using the mean function.

Based on the above information, the following example might help you:

%% Generate random data
% size of cell array
N = 10;
data = cell(N,1);
for i=1:N
    % Random size arrays within each row of cell array
    n = randi(6,1);
    data{i} = randn(n,1);
end
%% Compute mean
meanArray = zeros(N,1);
for i=1:N
    meanArray(i) = mean(data{i});
end

You can also check the MATLAB Onramp course through which you can learn the essentials of MATLAB through this free, two-hour introductory tutorial on commonly used features and workflows.

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MATLAB Language Fundamentals Matrices and Arrays Creating and Concatenating Matrices

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