bubble sort in matlab

Here is an implementation of bubble sort in MATLAB:

main.m
function sortedArr = bubbleSort(arr)
% BUBBLESORT Sort an input array using BubbleSort algorithm

n = length(arr);
for i = 1:n-1
    for j = 1:n-i
        if arr(j) > arr(j+1)
            % swap
            temp = arr(j);
            arr(j) = arr(j+1);
            arr(j+1) = temp;
        end
    end
end
sortedArr = arr;
end
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The function takes an input array arr and applies the bubble sort algorithm to sort its elements in ascending order. It returns the sorted array sortedArr.

Here's an example usage:

main.m
arr = [3, 1, 4, 1, 5, 9, 2, 6, 5];
sortedArr = bubbleSort(arr);
disp(sortedArr); % [1, 1, 2, 3, 4, 5, 5, 6, 9]
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In this example, the input array is [3, 1, 4, 1, 5, 9, 2, 6, 5] and we've used the bubbleSort function to sort it.

Note that bubble sort is not usually efficient for large arrays or data sets, as it has a time complexity of O(n^2). Other sorting algorithms like quicksort or mergesort may be better options for larger data sets.