If Else Statement in a Switch function

As the title stated, I want to make a program where I can input if else statement into a switch case, however most source I see on the forum just straight up put the condition into the case without if else statement, which prevent from getting the code that I wanted. Is there a way to make it work? Or it is impossible to put the two function together without removing the if else statement?

Thank you in advance

Answer 1

[the cyclist]

You didn't end the if clause that is inside the first case statement.

[Muhammad Aiman Al-Amin]

thank you very much!

Answer 2

[Bhanu Prakash]

Hi Aiman,

As per my understanding, you want to use an "if-else" statement in "case" statement.

The answer to your question is "Yes". You can use "if-else" statement in a "case" statement. But the error that you got is due to the usage of incorrect syntax in the "case" statement.

I have attached the edited part of the code, for your reference:

switch n
    case 1
        if gread <70
            disp('Your glucose level is too low.');
        elseif (70 <=gread) && (gread <=100)
            disp('Congratulations, your glucose level is normal.');
        elseif (101 <=gread) && (gread <=125)
            disp('You are diagnosed as pre-diabetes');
        else
            disp('You are diagnosed as diabetes');
        end
    case 2
        if gread < 70
            disp('Your glucose level is too low.');
        elseif (70 <=gread) && (gread <=100)
            disp('Congratulations, your glucose level is normal.');
        elseif (101 <=gread) && (gread <=125)
            disp('You are diagnosed as pre-diabetes');
        else
            disp('You are diagnosed as diabetes');
        end
end

You can refer to the documentation of "case" statement, for more info:

Execute one of several groups of statements - MATLAB switch case otherwise - MathWorks India

Hope this answer helps you.

Thanks,

Bhanu Prakash.

[Muhammad Aiman Al-Amin]

Thank you very much for the asnwer!

It seems that I need to put 'end' for each if else statement.

May I ask, in this case, why is there no need to put 'otherwise' case in the switch function? Is the otherwise statement optional in switch function?

[the cyclist]

Yes, the otherwise block is optional. (This is mentioned in the documentation.)

I think it is considered best practice to include one, though, to guard against the possibility of inadvertentlyl not covering all possible cases.