Martin -
Thanks for your efforts in initiating and managing this
discussion.
As for the issue of deprecating the plot.lm() pictures in
the published books, surely this will have great benefits
for the authors. It will help them to sell the new editions
of their books that will in due course appear
> "Wst" == Werner Stahel <[EMAIL PROTECTED]>
> on Fri, 16 Sep 2005 09:37:02 +0200 writes:
Wst> Dear Martin, dear Johns Thanks for including me into
Wst> your discussion.
Wst> I am a strong supporter of "Residuals vs. Hii"
>>> One remaining problem I'd like to address
Dear Werner,
> -Original Message-
> From: Werner Stahel [mailto:[EMAIL PROTECTED]
> Sent: Friday, September 16, 2005 2:37 AM
> To: Martin Maechler
> Cc: R-devel@stat.math.ethz.ch; John Maindonald; Werner
> Stahel; John Fox
> Subject: Re: plot(): new behavior in R-2.2.0 alpha
>
. . .
Dear Martin, dear Johns
Thanks for including me into your discussion.
I am a strong supporter of "Residuals vs. Hii"
>> One remaining problem I'd like to address is the "balanced AOV"
>> situation, ...
In order to keep the plots consistent, I suggest to draw a
histogram. Other alternatives wil
Dear Martin,
> -Original Message-
> From: Martin Maechler [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, September 14, 2005 3:56 AM
> To: John Fox
> Cc: 'Martin Maechler'; 'Werner Stahel'; 'John Maindonald';
> R-devel@stat.math.ethz.ch
>
Dear John,
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of John Maindonald
> Sent: Wednesday, September 14, 2005 1:09 AM
> To: Martin Maechler
> Cc: Werner Stahel; R-devel@stat.math.ethz.ch; John Fox
> Subject: Re: [Rd] plot
Thank you, John, for
Dear
> "JohnF" == John Fox <[EMAIL PROTECTED]>
> on Tue, 13 Sep 2005 16:41:28 -0400 writes:
JohnF> A couple of comments on the new plots (numbers 5 and 6):
JohnF> Perhaps some more thought could be given to the
JohnF> plotted contours for Cook's D (whi
Following the >20 messages that Martin mentioned, I had
private discussion with John Fox, which in part lies behind
following questions:
(1) In plot 5, should we have, maybe as an option, vertical
lines at 2hbar and 3hbar, as in the plots produced by the
function that John Fox sent me. I think th
Dear Martin,
A couple of comments on the new plots (numbers 5 and 6): Perhaps some more
thought could be given to the plotted contours for Cook's D (which are 0.5
and 1.0 in the example -- large Cook's Ds). A rule-of-thumb cut-off for this
example is 4/(n - p) = 4/(50 - 5) = 0.089, and the discrep
As some of you R-devel readers may know, the plot() method for
"lm" objects is based in large parts on contributions by John
Maindonald, subsequently "massaged" by me and other R-core
members.
In the statistics litterature on applied regression, people have
had diverse oppinions on what (and how
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