[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: RE: prtest and fweights
At 12:53 PM 9/22/2004 +0100, Ronán Conroy wrote:
Thanks Nick. And good point, Ronan, I'd overlooked that problem, mostly
because I don't think I've encountered it before. Another alternative is
to use -prtesti-, which might be the quickest and simplest thing if, as you
say, you were transcribing a table and the only thing you wanted to do was
run -prtest- on it. But adding weights to -prtest- would seem like a
simple enough thing to do.
Nick Cox wrote:
I can't comment on why not. I guess no one asked, or no one thought of
doing it.But beware of -expand-. If an observation represents a zero frequency, it
will be retained. You will see a warning but it's a behaviour that you
might not have anticipated.
For the moment,
I transcribe tables from papers that I am reviewing into Stata frequently,
to cross-check stats, and it's easy to transcribe a zero without
remembering that this will create a single observation in the expanded dataset.
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
WWW (personal): http://www.nd.edu/~rwilliam
WWW (department): http://www.nd.edu/~soc
* For searches and help try: