how do i split every digit of a string

i have a string as '1111' how to split its digit as

num(1)=1

num(2)=1

num(3)=1

num(4)=1

I will always have numbers only in the string

thanks in advance

Answer 1

[Matt Fig]

S = '1234';  % Say this is your string....
num = S - '0';
num(1)
num(2)
num(3)

[Sharen H]

Thanks a lot

Answer 2

[Walter Roberson]

num = '1111'

then

num(1) would be '1'

If you need num(1) to be numeric 1 rather than the character 1, then

num = '1111' - '0'

[Sharen H]

Thank u