matlab归并排序

归并排序是一种算法复杂度为nlogn的排序方法，可以用于对多维数组按照某一标准进行排序。在MATLAB中，可以自定义归并排序函数来实现多维数组的排序。下面是一个示例的MATLAB归并排序函数：

function [sorted] = mergeSort(unsorted)
    if length(unsorted) <= 1
        sorted = unsorted;
        return
    end
  
    mid = fix(length(unsorted) / 2);
    left = mergeSort(unsorted(1:mid));
    right = mergeSort(unsorted(mid+1:end));
  
    sorted = merge(left, right);
end

function [merged] = merge(left, right)
    i = 1;
    j = 1;
    merged = [];
  
    while i <= length(left) && j <= length(right)
        if left(i) <= right(j)
            merged = [merged, left(i)];
            i = i + 1;
        else
            merged = [merged, right(j)];
            j = j + 1;
        end
    end
  
    if i <= length(left)
        merged = [merged, left(i:end)];
    elseif j <= length(right)
        merged = [merged, right(j:end)];
    end
end

这是一个递归实现的归并排序函数，首先将数组分成左右两部分，然后分别对左右两部分进行排序，最后将左右两部分合并。通过递归的方式，归并排序可以对多维数组进行排序。