String Matrices

Strings can be used to form matrices, in the same way that numeric values can form a numeric matrix:

> StrMat = [ "A string", "Another String";
>            "A third string", "The last string" ];
> StrMat
 StrMat =
A string         Another String   
A third string   The last string  
> show(StrMat)
   name:      StrMat  
   class:     string  
   type:              
     nr:      2       
     nc:      2

As shown here, the elements of a string matrix do not need to be the same length. However scalar strings cannot be mixed with numeric scalars in the same matrix — a list is the only variable capable of making up a heterogeneous collection.