This is entirely trivial, but anyway: I realised that the manual somehow underplays the possible operations on arrays ("At present only one operation is available for arrays as a whole, namely appending", p. 78), as subsets of an array can be extracted using matrix syntax, as in

<hansl>
strings S = array(3)
S[1] = "a"
S[2] = "b"
S[3] = "c"
strings Q = S[1:2]
</hansl>

which starting from the array "a","b","c" produces the array "a","b". This actually came handy to me (I started with a panel of units and their labels in an array, then dropped some units and needed to redefine the array), so it may be worth it mentioning it in the manual.
bye
Stefano

________________________________________________________________________

Stefano Fachin
Professore Ordinario di Statistica Economica
Dip. di Scienze Statistiche
"Sapienza" Università di Roma
P.le A. Moro 5 - 00185 Roma - Italia
Tel. +39-06-49910834
fax  +39-06-49910072
web http://stefanofachin.site.uniroma1.it/

________________________________________________________

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