<>
Note, however, that there is a hazard involved when specifying a -varlist-
that encompasses all variables between "x1" and "xn" via the dash notation:
The number of variables between them changes with the -sort- order, as seen
after -describe- (see [U], page 101, example 14). So next time you run this
code, the result could be different. Issuing an explicit -sort- or -order-
could save you trouble.
Also note that the -sum()- function would give you a running sum, and
accepts only a -varname-, not a -varlist-...
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Martin Weiss
Gesendet: Montag, 26. Oktober 2009 19:45
An: [email protected]
Betreff: st: AW: sum of many variables
<>
*************
egen x=rowtotal(x1-xn)
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Andrea Rispoli
Gesendet: Montag, 26. Oktober 2009 19:46
An: [email protected]
Betreff: st: sum of many variables
Dear Statalisters,
I would like to use the sum command, i.e.
egen x= sum (x1, x2...xn)
however since my n is a large number I would like to indicate that I
want the sum from x1 to xn without specifying all variables.
Do you have any suggestions?
Thank you very much in advance
AR
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