--- "Donald F. Burrill" <[EMAIL PROTECTED]> wrote: > On 31 May 2000, Vmcw wrote: > VIF=10 is based on empirical data. > > >>It is 10. I hope, you are talking about Variance > Inflation Factor. > > >>More than 10 indicates severe multicollinearity. > > Thus spake Jin Singh. And someone else (was it Dave > Heiser?) retorted, > sensibly I thought, > > > >And where does this magic number come from? :) > > To which Tom in PA replied (possibly > tongue-in-cheek?), > > > Neter, Wasserman, Nachtsheim, and Kutner, of > course! (or is it Wasserman, > > Kutner, Neter, and Nachtsheim or one of the other > 22 permutations?). > > I've heard of a Wasserman (or Wassermann?) test, but > didn't think it had > to do with VIF. Dunno about all those other blokes. > But apart from > argument by Appeal to Irrelevant Authority at > HeadQuarters, was there > actually some _reasoning_ underlying the selection > of VIF = 10, or was > it just someone's arbitrary guess (like the 10 > subjects per variable one > is supposed to have before one dares essay a factor > analysis)? > -- Don. > > ------------------------------------------------------------------------ > Donald F. Burrill > [EMAIL PROTECTED] > 348 Hyde Hall, Plymouth State College, > [EMAIL PROTECTED] > MSC #29, Plymouth, NH 03264 > 603-535-2597 > 184 Nashua Road, Bedford, NH 03110 > 603-471-7128 > > > > =========================================================================== > This list is open to everyone. Occasionally, less > thoughtful > people send inappropriate messages. Please DO NOT > COMPLAIN TO > THE POSTMASTER about these messages because the > postmaster has no > way of controlling them, and excessive complaints > will result in > termination of the list. > > For information about this list, including > information about the > problem of inappropriate messages and information > about how to > unsubscribe, please see the web page at > http://jse.stat.ncsu.edu/ > =========================================================================== > > > ===== J. Singh I.D.S George brown College [EMAIL PROTECTED] www.gbrownc.on.ca/~jsingh __________________________________________________ Do You Yahoo!? Send instant messages & get email alerts with Yahoo! Messenger. http://im.yahoo.com/ =========================================================================== This list is open to everyone. Occasionally, less thoughtful people send inappropriate messages. Please DO NOT COMPLAIN TO THE POSTMASTER about these messages because the postmaster has no way of controlling them, and excessive complaints will result in termination of the list. For information about this list, including information about the problem of inappropriate messages and information about how to unsubscribe, please see the web page at http://jse.stat.ncsu.edu/ ===========================================================================
