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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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

Subject |
st: RE: Filling in gaps in time variable |

Date |
Mon, 9 Feb 2009 12:21:12 -0000 |

The key question is: What to you defines a panel, bearing in mind that Stata's definition of panel allows at most one observation for each combination of panel identifier and time? My guess from this is that your panels are perhaps the distinct combinations of -country- and -title-, in which case Stata might be satisfied by egen id = group(country title) tsset id week but only you can say whether that matches the data generating process you have in mind. Nick n.j.cox@durham.ac.uk Mike Kim I have a question about tsfill. My data look like this: week rev title country 1 992 A P 2 182 A P 4 221 A P 1 258 A Q 2 278 A Q 3 293 A Q 5 336 A Q 7 342 A Q I tried "tsset title week" to use tsfill, but Stata says "repeated time values within panel". "tsset country week" gives the same error message because week is repeated within a country, too. I want to fill missing weeks like the following. Is there any way to do this? week rev title country 1 992 A P 2 182 A P 3 221 A P 4 221 A P 1 258 A Q 2 278 A Q 3 293 A Q 4 336 A Q 5 336 A Q 6 342 A Q 7 342 A Q * * 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: Creating a variable (cumulative revenue by title)***From:*"Mike Kim" <argonomos@gmail.com>

**References**:**st: Filling in gaps in time variable***From:*"Mike Kim" <argonomos@gmail.com>

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