Can I ask Matlab to run from a previous line?

I am running an if loop, and I would like my else condition to return me to line 3 in my code, which is the line just before this loop starts. Is it possible to do this? If not, how can I run a loop which continues to run until a certain condition is fulfilled?

[Star Strider]

It would help if you posted or attached the relevant parts of your code.

Answer 1

[Image Analyst]

If what you want to do is "is repeat the line before the loop and then go through 1 more iteration of the loop." then put the while loop inside a for loop

for k = 1 : 2
    a=10;  % Some "line before the loop"
    while someCondition
       % Code that you want to do... then....
       b = 20; % Whatever code you want to do.
       % Now, at the bottom of the loop, don't let it do
       % more than 1 iteration if k == 2
       if k >= 2
             break;
       end
    end
end

Answer 2

[the cyclist]

I expect you want either the break or continue command.

[Michael]

break or continue would just make me leave the loop. What I want to do is repeat the line before the loop and then go through 1 more iteration of the loop.

[Eman Hussain]

This is my problem in matlab I want solution of this problem

[Image Analyst]

A solution was given above https://www.mathworks.com/matlabcentral/answers/182862-can-i-ask-matlab-to-run-from-a-previous-line#answer_171137

Answer 3

[Image Analyst]

If you want to do this manually within the debugger, it is not possible. With some languages, like Pharo, Lisp, C++ and Visual Basic, you can set a breakpoint and then grab the arrow and drag it to any other line you like and start executing from there. This is a very nice feature called "edit and continue" . You can change the code, then back up a line or two and re-execute that line of code with your new changes. Or if you stepped on a function and didn't like the outputs, then you could change the inputs to the function, say by typing in new values for them in the command window, and back up and run the function again. It would be truly awesome if MATLAB had that feature, but unfortunately MATLAB does not have that feature.