syntax for a sucessful switch case

% So I am trying to write either a loop or a switch case to iterate turns until one of the following cases are met.
% Where am I going wrong with the syntax.


% Part A Creat a Board
Bingo_board = randi([1 100], 5,5);
NewGame = zeros (5,5);
NewGame = Bingo_board
Scorecard = zeros (5,5);
Scorecard(3,3)=1
% Part B Turn 1
% Draw a Random Number

x = randi ([1,100], 1)

% Find the number on scorecard

idx = x==NewGame;
[R,C] = find(idx);

% Replace the Zero with a one on the scorecard

Scorecard (R,C) = 1


switch 
    case 'first'
        Scorecard (1,:) = 1
    case 'second'
        Scorecard (2,:) = 1
    case 'third'
        Scorecard (3,:) = 1
    case 'fourth'
        Scorecard (4,:) = 1
    case 'fifth'
        Scorecard (5,:) = 1
    case 'sixth'
        Scorecard (:,1) = 1
    case 'seventh'
        Scorecard (:,2) = 1
    case 'eighth'
        Scorecard (:,3) = 1
    case 'ninth'
        Scorecard (:,4) = 1
    case 'tenth'
        Scorecard (:,5) = 1
end

[Rik]

Did you read the documentation for switch? It contains examples you could modify for your code.

And what is your intended end result? It might be possible to simplify this code.

Answer 1

[Walter Roberson]

you need to switch an expression. As your cases are all character vectors you would need to follow switch by an expression that evaluates to a character vector.

This is going to be a problem with your existing code as you do not have any character vectors in your code otherwise.

[Walter Roberson]

switch true
  case all(Scorecard(:, 1)==1)
     'first'