switch case - choose from array

I'm trying to run a function which includes this part:

optionsVec = [1 5 12 14];

for k=1:10

    switch k 
      case num2cell(optionsVec)
        disp('k is an option')
      otherwise 
        disp('k is not an option')
    end
  end

But the num2cell function is very time consuming.

How can I preform the same action - compare k to numbers within an array - more efficiently?

Thanks!

Answer 1

[Stephen23]

Do the conversion before the loop:

 C = num2cell(optionsVec);
 for ...
    switch ...
    case C
    ...
    end
 end

Answer 2

[Adam]

validIdx = ismember( 1:10, [1 5 12 14] );

for n = 1:numel( validIdx )
   if validIdx(n)
      disp( 'k is an option' )
   else
      disp( 'k is not an option' )
   end
end

should achieve the same thing, printing one or other of those statements 10 times. There may be a neater way than the for loop to do the disp part too, but there is certainly no need for cell arrays.