How do I turn on and turn off parts of my script?

(I am sure there are already answers to my question, but I am having trouble thinking of the keywords that would lead me to them.)

I have written a long script for a project that has multiple parts. In order to demonstrate each part, I have to comment out some other parts and uncomment the part that I need.

The project is too complicated for me to consider putting everything in functions only. Is there a way for me to easily turn on and off parts of my script?

Edit: My code is divided into sections and I can comment and uncomment out blocks of it, but I was told that the code needed to have "flags" so that I can easily turn on and off different blocks of the code with just a click or a single input. A function or an if statement might work but I think that would be very messy.

[madhan ravi]

Please don’t close question that have answer

[Stephen23]

"How do I turn on and turn off parts of my script?"

"I was told that the code needed to have "flags" so that I can easily turn on and off different blocks of the code with just a click or a single input"

Sure, this is easy: just use if, switch, and any other basic programming flow control operations. That is exactly what they are for. There is no point in reinventing the wheel.

[Image Analyst]

In case you're not familiar with the terminology, a variable or expression or condition that an "if" statement tests is often called a "flag". So make a variable, or a boolean expression with operators like <, >, =, &&, and , that evaluates to false (or 0) or true (or non-zero) and that can be your "flag"

Answer 1

[the cyclist]

I don't have much experience with this new(ish) functionality, but it sounds like you might be describing things that can be done with a Live Script.

Answer 2

[Image Analyst]

At the start of the code you can use %{ then at the end %}

%{
   Stuff to be commented out
%}

See https://www.mathworks.com/matlabcentral/answers/122-how-do-i-comment-out-a-large-block-of-code-in-matlab

Answer 3

[the cyclist]

In the Editor tab (of the Editor window), there is a Comment functionality.

Highlight the section(s) of code you want to comment out, and click that button.

You could also divide your code into Code Sections.

[Walter Roberson]

You can also put

if false

around parts that are not to be executed

[Image Analyst]

Control-r is the keyboard shortcut to comment out code. Control-t re-enables it.

[the cyclist]

... on a Window machine. If you are on a Mac, it is command-/ and command-t.

[Jenna Wong]

Thank you for your answer! I can actually comment and uncomment parts of the code fine. I would just like to know if there is a faster, more automatic way to turn on and off certain parts of the script, so that someone who is not familiar with the script and does not want to go through a detailed readme can do it with a single click or textual input.

At this point, I do not think it is feasible to put everything into functions, and I think an if statement would be very messy. I was told I could put in flags that could "turn on" and "turn off" linked parts of the code, instead of comments.

[Image Analyst]

What does automatic mean to you? You could put an if test in there, that checks some condition such as whether the user checked a checkbox on the user interface.

if  someCondition
    % Code to execute....
end

Again, explain what automatic means. Under what condition would the "automatic" process include (run) or exclude (not run) code?

[Stephen23]

"I would just like to know if there is a faster, more automatic way to turn on and off certain parts of the script..."

The fastest, simplest, and most intuitive solution is to use if statements.