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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

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 12:11:40 +0100 |

Corrected English: I take "value 1 at least in one of the time intervals" to mean "value 1 in at least one of the time intervals" and not "value at least 1 in one of the time intervals". On Mon, Aug 15, 2011 at 11:59 AM, Nick Cox <njcoxstata@gmail.com> wrote: > 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 > <katia.bobulova@googlemail.com> 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? > * * 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/

**References**:**st: Keep all the observations in a day if the variable takes value 1 at least in one time interval.***From:*Katia Bobulova <katia.bobulova@googlemail.com>

**Re: st: Keep all the observations in a day if the variable takes value 1 at least in one time interval.***From:*Nick Cox <njcoxstata@gmail.com>

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