In switch-case, case values from variable (dynamic)

  array1 = [1 2 3]; % this will change in the program
  array2 = [4 5 6]; % this will change in the program

  switch anyVariable
    case {array1}
      disp('1')
    case {array2}
      disp('2')
    otherwise
      disp('3')
  end

This always displays 3, irrespective of the value of anyVariable. Shall I change it to if-elseif kind structure?

Answer 1

[Stephen23]

Use cell arrays, where each cell contains one scalar numeric (or a char vector):

V1 = {1,2,3};
V2 = {4,5,6};
switch scalarVal
    case V1
        disp('one')
    case V2
        disp('two')
    otherwise
        disp('none')
end

[Walter Roberson]

Unless, that is, anyVariable is a vector and you want to compare the entire vector for equality with array1 or array2

[Pramit Biswas]

Aha, I missed it... Thank you. I used num2cell(array1): (This is just for reference)

[Pramit Biswas]

For the comment, is it possible to compare vector (numeric, not character), e.g.: switch [4 5 6]?

[Walter Roberson]

"For objects that support the eq function, case_expression == switch_expression."

That said, I would want to test to be sure.

[Walter Roberson]

It appears that it rejects vectors and arrays except for character vectors.

[Pramit Biswas]

Only after viewing the comment I tried to execute that (Thanks for the comment). It can be a nice feature to add.

[Stephen23]

@Pramit Biswas: you can convert numeric row vectors to char (as long as they are suitable, i.e. positive integers, etc).