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From |
gjhxmu@sina.com |

To |
statalist<statalist@hsphsun2.harvard.edu> |

Subject |
Re: RE: st: RE: Is there a command similar to "bys" if I want to gsort the variables? |

Date |
Fri, 04 Dec 2009 14:20:32 +0800 |

Martin, thank you very much! I undertand now. Best regards, Rose ----- Original Message ----- From: Martin Weiss <martin.weiss1@gmx.de> To: <statalist@hsphsun2.harvard.edu> Subject: RE: st: RE: Is there a command similar to "bys" if I want to gsort the variables? Date: 2009-12-4 14:08:11 <> "...why did the result of "d, short" in your typing show it was sorted by order, not year area?" As [D], p. 260 says: " Stata ... does not understand descending sorts (gsort is an ado-file). To remedy this problem, gsort's generate() option will create a new grouping variable that is in ascending order (thus satisfying Stata's narrow definition) and that is, in terms of the groups it defines, identical to that of the true sort variables" HTH Martin -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of gjhxmu@sina.com Sent: Freitag, 4. Dezember 2009 04:32 To: statalist Subject: Re: st: RE: Is there a command similar to "bys" if I want to gsort the variables? Austin, Eric,and Kieran,Thank you very much for your replies. I just want to make it easy when I want to arrange observations to be in descending order of the specified variables and do something else following. Just like "bys z1 z2: g num=_n" (this is just an example.) Anyway,thank you for your help. Kieran, why did the result of "d, short" in your typing show it was sorted by order, not year area? d, short Contains data obs: 17 vars: 3 size: 221 (99.9% of memory free) Sorted by: order Note: dataset has changed since last saved Thank you for any help. Best regards Rose ----- Original Message ----- From: Kieran McCaul <Kieran.McCaul@uwa.edu.au> To: <statalist@hsphsun2.harvard.edu> Subject: st: RE: Is there a command similar to "bys" if I want to gsort the variables? Date: 2009-12-4 05:05:13 ... Is this what you want? input year area 2000 1 2000 1 2000 2 2000 2 2001 1 2001 2 2001 3 2001 3 2001 3 2001 4 2002 2 2002 2 2002 4 2003 3 2003 3 2003 6 2003 6 end gsort year -area, gen(order) list d, short by order:gen num=_n list ______________________________________________ Kieran McCaul MPH PhD WA Centre for Health & Ageing (M573) University of Western Australia Level 6, Ainslie House 48 Murray St Perth 6000 Phone: (08) 9224-2701 Fax: (08) 9224 8009 email: Kieran.McCaul@uwa.edu.au http://myprofile.cos.com/mccaul http://www.researcherid.com/rid/B-8751-2008 ______________________________________________ If you live to be one hundred, you've got it made. Very few people die past that age - George Burns -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of gjhxmu@sina.com Sent: Thursday, 3 December 2009 11:55 PM To: statalist Subject: st: Is there a command similar to "bys" if I want to gsort the variables? Dear statalists, Is there a command similar to "bys" if I want to gsort the variables? For example, bys year (area): g num=_n However, I want to gsort the variable of area. I have tried as followings, gsort year -area by year: g num=_n Is there an easier way to do it just like -bys-? By the way, when I typed "d,short" after I typed "gsort year -area", the result was as followings, Contains data from study.dta obs: 155 vars: 6 5 Jun 2009 01:45 size: 3,875 (99.9% of memory free) Sorted by: year Why the sorted variable did not contain area? Thank you for any help! Best regards, Rose * * 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/

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