collapse string vector to scalar x[1]+" "+x[2]+" "+...+" "+x[length(x)]

[Frank Erickson]

I am trying to construct a local from a mata vector of strings. Unfortunately, st_local(lname,lvalue) demands a scalar for both arguments. That's why I'm looking to perform the operation in the title.

I know that I can construct the object in the title in a loop, but am wondering if there is a built-in analogue to Reduce(binary_function, vector) available in other languages...? (That's the exact syntax for the function in R, but I think Reduce comes from elsewhere in computer science.)

[Jeff Pitblado (StataCorp)]

st_local(lname, invtokens(lvalue))

[Frank Erickson]

Cool, thank you Jeff; I'll use that. Is there no general approach that behaves like Reduce() (other than a loop), then?