How do I break a complex loop with a multiple-if structure?

I am writing a code that has the following form:

   for i = 1:size(interiorcolumns,1)
    if interiorcolumns{i}(6) == heightsmatrix(1)
      condition 1
    elseif interiorcolumns{i}(6) == heightsmatrix(2)
      condition 2
    elseif interiorcolumns{i}(6) == heightsmatrix(3)
      condition 3
    elseif interiorcolumns{i}(6) == heightsmatrix(4)
      condition 4
    elseif interiorcolumns{i}(6) == heightsmatrix(5)
      condition 5
    else
      condition 6
    end
    end

When the heightsmatrix, is smaller than six row elements, I want the redundant if statements not to be taken into account. How can I do that?

Answer 1

[Matt J]

Another way

     for i = 1:size(interiorcolumns,1)

       switch find(  interiorcolumns{i}(6) == heightsmatrix, 1 )

       case 1
          condition 1
       case 2
          condition 2
       case 3
          condition 3
       case 4
          condition 4
       case 5
          condition 5
        otherwise 
          condition 6

       end

    end

Answer 2

[Matt J]

I would just fill the missing elements with NaNs

heightsmatrix(end+1:6)=nan;