What is wrong with my code?

Attached is my code. It should be a brief animation , but its not. Can anyone debug?

Answer 1

[per isakson]

• See Debug a MATLAB Program

I get an image and

>> game_of_evolution
Operands to the || and && operators must be convertible to logical scalar values.
Error in game_of_evolution (line 52)
        if M==1 && S==1

and

>> game_of_evolution
52          if M==1 && S==1 
K>> whos M S
  Name       Size             Bytes  Class      Attributes

    M         50x100             5000  logical              
    S         50x100            40000  double

The error message says: Operands to the and && operators must be convertible to logical scalar values.