Bubble sort error line 1

Hi, i am currently trying to use a bubble sort for a series of inputed numbers but im getting an error on line 2.

can someone please explain why i am getting this error and how to fix it.

thank you in advance.

here is my code and the error: Error in Bubble1 (line 2)

cases = input('Enter cases with [ ] around them:');

cases = input('Enter cases with [ ] around them:');


sorted_array = bubble_sort(cases)



function array = bubble_sort( array )


for i = 1:length(array)
  
    for j = 1:length(array)-i
    
        if(array(j)>array(j+1))
            temp = array(j+1);
            array(j+1) = array(j);
            array(j) = temp;
        end
    end
end

end

Answer 1

[Chunru]

You code can run. if you use "input", key in the following "[1 3 2 5 2]" without quotes.

%cases = input('Enter cases with [ ] around them:');
cases = [1 3 2 5 2]

cases = 1×5

1 3 2 5 2

sorted_array = bubble_sort(cases)

sorted_array = 1×5

1 2 2 3 5

function array = bubble_sort( array )
for i = 1:length(array)
  
    for j = 1:length(array)-i
    
        if(array(j)>array(j+1))
            temp = array(j+1);
            array(j+1) = array(j);
            array(j) = temp;
        end
    end
end
end

[Joe Ainsworth]

Sorry @Chunru, i know it can run without the input line but i need the user to input the integers they would to bubble sort, how do i do this where the user can input the integers.

[Walter Roberson]

Using exactly the code you posted:

>> q1451489

Enter cases with [ ] around them:[1 3 2 5 2]

sorted_array =

1 2 2 3 5

That is, the user must enter the actual [ and ] characters as part of their input.

[Joe Ainsworth]

@Walter Roberson for whatever reason my code is working perfectly now, before it wouldnt even let me run it saying error on line 2

[Joe Ainsworth]

Thanks though!