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Re: st: Keep all the observations in a day if the variable takes value 1 at least in one time interval.
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Keep all the observations in a day if the variable takes value 1 at least in one time interval.
Date
Mon, 15 Aug 2011 11:59:27 +0100
I take "value 1 at least in one of the time intervals" to mean "value
1 in at least in one of the time intervals" and not "value at least 1
in one of the time intervals".
egen everone = total(s1 == 1), by(day)
keep if everone
See also
SJ-11-2 dm0055 . . . . . . . . . . . . . . Speaking Stata: Compared with ...
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox
Q2/11 SJ 11(2):305--314 (no commands)
reviews techniques for relating values to values in other
observations
Nick
On Mon, Aug 15, 2011 at 11:42 AM, Katia Bobulova
<[email protected]> wrote:
> I would like to keep all the observations in one day (which it is
> divideded in time intervals), if a variable takes value 1 at least in
> one of the time intervals.
>
> However, if I type:
>
> keep data if s1==1 I will obatian only the time intervals and not the whole day.
>
> Do you have any suggestion on how to do?
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