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: Mark observations with missing data
From
Richard Herron <[email protected]>
To
[email protected]
Subject
st: Mark observations with missing data
Date
Fri, 6 Jan 2012 13:00:45 -0500
I learned about -dropmiss- (Stata Journal) from this Stata List post:
http://www.stata.com/statalist/archive/2010-05/msg00513.html
But I would like to keep all observations and just mark the ones with
missing observations in a given -varlist-. This way with an -if-
statement I can find summary statistics for the same data that I will
later use in regressions. I provide a hackish solution below, but is
there a better way? Is there anything flawed with my approach? I am a
little wary of loops and my own coding. Thanks!
Here is my hackish solution if I want to mark observations with any
missing variables.
* begin code
sysuse auto, clear
replace price = . in 1
replace mpg = . in 2
list in 1/5
* hackish solution
generate byte complete = 1
foreach x of varlist * {
replace complete = 0 if missing(`x')
}
list in 1/5
* end code
*
* 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/