RE: st: RE: variance of R2

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 01:53 PM 8/8/2007, Nick Cox wrote:
> Like at least some others I am somewhat bemused
> by this thread.
>
> The need to compare models is something we perhaps
> can all relate to. My own bias is that I would
> rather look at two residual vs fitted plots or
> even observed vs fitted plots than play games
> with R-square, however customary that may be.
>
> Measuring how well you have done something
> is not going to tell much about why you
> are doing well or badly, or where to move next.
>
> Nick
> n.j.cox@durham.ac.uk
Here is my own little handout on the evils of R^2, with an emphasis 
on using R^2 for cross-population comparisons:

http://www.nd.edu/~rwilliam/stats2/l72.pdf


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Richard Williams, Notre Dame Dept of Sociology
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