How to use the if condition in matlab?

Hello I have doubts in using if condition in matlab.I have to perform the following operation in a cell.

     Final={ S1 if B{i}=11
             S1 if B{i}=10
             S2 if B{i}=01
             S2 if B{i}=00

I have the 2 bit binary values as a 128x17 cell. How to perform this and create a new matrix Z where i get the values of S1 and S2.

     B= 00 10 11 10 11 
        01 01 01 01 11 
        10 00 01 00 01 
        10 10 01 01 11 
        10 10 10 00 10

and if

     S1= 21 
         23
         28 
         25 
         43 

     S2= 96 
         85 
         78 
         65 
         76

For each binary value, the corresponding S value should be present.So my Z would be

      Z = s2 s1 s1 s1 s1   
          s2 s2 s2 s2 s1
          s1 s2 s2 s2 s2
          s1 s1 s2 s2 s1
          s1 s1 s1 s2 s1

    ie Z= 96 21 21 21 21 
          85 85 85 85 23 
          28 78 78 78 78
          25 25 65 65 25
          43 43 43 76 43

ie; with the values of S1 and S2, the data in B is to be replaced.please help. thanks in advance

Answer 1

[Star Strider]

Please give an example of what Z should be given the appropriate values of B, S1, and S2. S1 and S2 are matrices, and in your Final assignment, B are addressed as elements. What elements of S1 and S2 should replace particular elements of B? This is not at all clear.

[Abirami]

I have edited the question sir...please help...thanks in advance...