string.cat
string: C = cat (dim, A, B, …)
Concatenate string arrays.
C = cat (dim, A, B, …) concatenates
string arrays A, B, … along dimension dim. All
input arrays must have the same size except along the operating dimension
dim. Any of the input arrays may also be character matrixes, cell
arrays of character vectors, numeric arrays, or logical arrays of
compatible size.
Source Code: string