use a single function 't30' to create a vector containing the average values for 30 periods in matlab

main.m
function avg_vector = t30(input_vector)
    % Check if the input vector size is a multiple of 30
    if rem(length(input_vector), 30) ~= 0
        error('Input vector size should be a multiple of 30');
    end

    num_periods = length(input_vector) / 30; % Calculate the number of periods

    avg_vector = zeros(1, num_periods); % Initialize average vector

    % Iterate over the input vector and calculate the average for each period
    for i = 1:num_periods
        start_index = (i - 1) * 30 + 1; % Calculate starting index of each period
        end_index = i * 30; % Calculate ending index of each period

        period_values = input_vector(start_index:end_index); % Extract values for each period
        avg_vector(i) = mean(period_values); % Calculate the average for each period
    end
end
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main.m
% Example usage
input_vector = [1:150]; % Your input vector containing the data
avg_vector = t30(input_vector); % Call the t30 function

disp(avg_vector); % Display the average vector
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