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Re: st: How to drop subjects with missing values on all variables


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How to drop subjects with missing values on all variables
Date   Mon, 30 Jan 2012 20:29:38 +0000

-dropmiss- (SJ) has an option to drop observations (presumably what
you mean by "subjects").  In Stata, type -search dropmiss- and install
from the SJ 8-4 files.

. search dropmiss

Keyword search

        Keywords:  dropmiss
          Search:  (1) Official help files, FAQs, Examples, SJs, and STBs

Search of official help files, FAQs, Examples, SJs, and STBs


SJ-8-4  dm89_1  . . . . Dropping variables or observations with missing values
        (help dropmiss if installed)  . . . . . . . . . . . . . . .  N. J. Cox
        Q4/08   SJ 8(4):594
        update in style and content; added a new force option

STB-60  dm89  . . . . . Dropping variables or observations with missing values
        (help dropmiss if installed)  . . . . . . . . . . . . . . .  N. J. Cox
        3/01    pp.7--8; STB Reprints Vol 10, pp.44--46
        drops variables or observations with all values (optionally
        any values) missing



On Mon, Jan 30, 2012 at 8:21 PM, shihying yao <berkeley.yao@gmail.com> wrote:

> I am wondering if there is a quick way to identify and drop subjects
> with missing values on all variables (including string and numeric
> variables) in a dataset? I used to use "drop if" command. However,
> it'd get annoying if there are a lot of variables.
>
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