Logical Built-In Functions:
There are built-in functions in the MATLAB which are useful in conjunction with vectors or matrices of all logical true or false values; two of these are the functions 'any' and 'all'. The function 'any' returns a logical true when any element in a vector is logically true, and false if not. The function 'all' returns a logical true only when all elements are logically true. Here are some illustrations. For the variable vec1, all the elements are logical true therefore both any and all return true.
>> vec1 = [1 3 1 1 2];
>> any(vec1)
ans =
1
>> all(vec1)
For vec2, various elements are logical true so 'any' returns the true but 'all' returns false.
>> vec2 = [1 1 0 1]
vec2 =
1 1 0 1
>> any(vec2)
>> all(vec2)
0