How can i count the value of a string?

I want to calculate a string how many staffs in there. For example

 1)Steven Alex Mason  28  85  65.5
 2)Alex Jones           29      35      60

For example 1 it has 6 elements and 2 it has 5 elements. I would like to find them.

Answer 1

[KSSV]

str = 'I love MATLAB' ;
A=strread(str,'%s','delimiter',' ') ;
length(A{1})
length(A{2})
length(A{3})