Merge parts that make up the string

Hello! I have a 1x5 string.

I would like to merge all the 5 parts that make up the string so that I have one overall string.

Between each string there must be a "_" symbol.

I have tried it this way

string_final = strcat(strPieces(1),"_", strPieces(2),"_", strPieces(3),"_", strPieces(4),"_", strPieces(5));

but I want to get the same result with something more generic and that can be directly referenced to the value 5 (as it might change).

For example:

number_of_string = 5;
string_final = strcat(strPieces(1:number_of_string), "_");

Answer 1

[dpb]

S=string(['A':'E'].');           % an arbitrary array of strings
join(S,"_")                      % join with underscore character

ans = "A_B_C_D_E"