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thanks
Yes we can handle the Hanover-Lebanon and SanDiego-LA problem.

 Barry Wellman
 _______________________________________________________________________

  S.D. Clark Professor of Sociology, FRSC               NetLab Director
  Department of Sociology                  725 Spadina Avenue, Room 388
  University of Toronto   Toronto Canada M5S 2J4   twitter:barrywellman
  http://www.chass.utoronto.ca/~wellman             fax:+1-416-978-3963
  Updating history:      http://chass.utoronto.ca/oldnew/cybertimes.php
 _______________________________________________________________________


On 31 Dec 2009, Joel Levine wrote:

> Date: 31 Dec 2009 12:24:18 -0500
> From: Joel Levine <[log in to unmask]>
> To: [log in to unmask], [log in to unmask]
> Subject: Re: [SOCNET] networks of air flights
>
> Barry,
>     I know it exists because I used it once with a student -- which doesn't mean
> I still have it (or that I remember where I got it it).  At the time there was
> nothing remarkably difficult about getting it.
>
> It was point to point for a year with passenger as the unit of analysis.
>
> One big validity problem:  In the real world passenger  passenger traffic is not
> a monotone function of either distance or real traffic:  There isn't much air
> traffic (some but not much) between extremely nearby destinations:  take a cab.
>
>
> Joel
>

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