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From |
zeynep elitaş <zelitas@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: AW: Area under a percentile point |

Date |
Tue, 3 Feb 2009 17:03:49 +0200 |

It looks like it'll work just fine Thanks for your time Zeynep Elitas 2009/2/3 Jeph Herrin <junk@spandrel.net>: > > What you want is a bit strange, but here is how I would do it: > > sort myvar > keep if _n<0.75*_N > > > hope this helps, > Jeph > > > > zeynep elitaş wrote: >> >> Thanks for help, but this does not solve my problem. As a simple >> example, lets assume we have a data set containing five 6's and five >> 7's. so the sample size is 10. Now if I wanted to keep the data values >> below the 75 th percentile, I would roughly have 7 observations >> remaining. However, following your suggestion I end up keeping all the >> observations. >> Thanks >> Zeynep Elitas >> >> 2009/2/3 Martin Weiss <martin.weiss1@gmx.de>: >>> >>> <> >>> >>> Let`s keep those below the 75 percentile of generated normal deviates... >>> >>> ************* >>> clear* >>> set obs 1000 >>> generate x=rnormal() >>> _pctile x, p(75) >>> keep if x<=r(r1) >>> ************* >>> >>> >>> >>> HTH >>> Martin >>> >>> -----Ursprüngliche Nachricht----- >>> Von: owner-statalist@hsphsun2.harvard.edu >>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von zeynep >>> elitas >>> Gesendet: Dienstag, 3. Februar 2009 14:28 >>> An: statalist@hsphsun2.harvard.edu >>> Betreff: st: Area under a percentile point >>> >>> I have a simple question which I do not have the answer for. Is there >>> a way to tell Stata to keep the data under a certain percentile point >>> and drop the rest? This is important since in my data a percentile >>> point has often the same value as the ones below and over it. >>> >>> Thanks >>> Zeynep Elitaş >>> >>> * >>> * 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/ >>> >>> >>> * >>> * 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/ >>> >> >> * >> * 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/ >> > * > * 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/ > * * 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: Area under a percentile point***From:*zeynep elitaş <zelitas@gmail.com>

**Re: st: AW: Area under a percentile point***From:*zeynep elitaş <zelitas@gmail.com>

**Re: st: AW: Area under a percentile point***From:*Jeph Herrin <junk@spandrel.net>

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