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From |
David Bell <dcbell@iupui.edu> |

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

Subject |
Re: st: RE: Stata equivalent of SAS "Proc Traj"? |

Date |
Fri, 13 Feb 2009 14:29:27 -0500 |

***

Dave ==================================== David C. Bell Professor of Sociology Indiana University Purdue University Indianapolis (IUPUI) (317) 278-1336 ==================================== On Feb 13, 2009, at 11:49 AM, John Hoffmann wrote:

I don't think an equivalent Stata procedure has been written,although I could be wrong. Jones, one of the developers of ProcTraj, has a website that might be useful (http://www.andrew.cmu.edu/user/bjones/index.htm). Also, given that the procedure is implemented as a SAS macro, itshouldn't be too hard to write equivalent code for Stata.JH -----Original Message-----From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Ariel LindenSent: Thursday, February 12, 2009 8:37 PM To: statalist@hsphsun2.harvard.edu Subject: st: Stata equivalent of SAS "Proc Traj"? Hi all,There is a user-written program for SAS called "Proc Traj" whichuses asemi-parametric approach to categorize individuals into groups basedontheir longitudinal trajectories. Is there similar procedure for us Stata folk? Here are the references:Jones, B. L., & Nagin, D. S. (2007). Advances in group-basedtrajectorymodeling and an SAS procedure for estimating them. SociologicalMethods &Research, 35, 542-571. Jones, B., Nagin, D. S., & Roeder, K. (2001). A SAS procedure based on mixture models for estimating developmental trajectories. Sociological Research and Methods, 29, 374-393. Thanks! Ariel * * 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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**Follow-Ups**:**Re: st: RE: Stata equivalent of SAS "Proc Traj"?***From:*Stas Kolenikov <skolenik@gmail.com>

**RE: st: RE: Stata equivalent of SAS "Proc Traj"?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**References**:**st: Stata equivalent of SAS "Proc Traj"?***From:*Ariel Linden <ariel.linden@gmail.com>

**st: RE: Stata equivalent of SAS "Proc Traj"?***From:*John Hoffmann <john_hoffmann@byu.edu>

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