Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: RE: collapse with fweights
From
"Nick Cox" <[email protected]>
To
<[email protected]>
Subject
st: RE: collapse with fweights
Date
Thu, 1 Apr 2010 11:27:31 +0100
This command would collapse to a single observation. Is that what you
really want?
Nick
[email protected]
Eric Sigurdson
I'm trying to collapse some very tall data, and I would like to
operate on two varlists with the command:
collapse (sum) vars1 (rawsum) vars2 [fw = fweight]
The manual states that the computation of `rawsum' should ignore the
specified weight, but I find that the sum this command puts out does
not include any of the observations of vars2 for which fweight=0 ,
despite the (rawsum) specification. Is there any way to stop this
behavior, or perhaps some better way to approach processing the data
in this manner?
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/