[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
Benson Limann <benli2@live.com> |

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

Subject |
st: How to detect the change of i over t? |

Date |
Sat, 7 Feb 2009 21:46:46 -0700 |

Hi all: I am using an unbalanced panel dataset. i is ID and t is time. Every (i,t) has a characteristic x=0 or 1. I want to generate a variable called "become" such that for each (i,t): become=1, if x=0 at time t-1, and x=1 at time t become=0, otherwise How to write it? My primary concern is how to deal with the first t for each i--this observation does not have t-1. Any suggestion would be greatly appreciated. Ben _________________________________________________________________ Windows Live™: E-mail. Chat. Share. Get more ways to connect. http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t2_allup_howitworks_022009 * * 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/

**Follow-Ups**:**st: Re: How to detect the change of i over t?***From:*"Martin Weiss" <martin.weiss1@gmx.de>

- Prev by Date:
**Re: st: RE: data reorganization** - Next by Date:
**st: Interaction terms in fixed effects analysis** - Previous by thread:
**st: data reorganization** - Next by thread:
**st: Re: How to detect the change of i over t?** - Index(es):

© Copyright 1996–2016 StataCorp LP | Terms of use | Privacy | Contact us | What's new | Site index |