[R] Force regression line to a 1:1 relationship

S Ellison S.Ellison at LGCGroup.com
Wed Sep 14 17:48:55 CEST 2011

> From: John Fox [mailto:jfox at mcmaster.ca] 
> Subject: Re: [R] Force regression line to a 1:1 relationship
> If I understand correctly what you said, a plot of residuals 
> against an X is not an added-variable plot. An added variable 

'Added variable plots' was the phrase used by the previous poster, and the description was also theirs, not mine. I intended only to draw attention to the fact that a-v plots are available in car - and thank you for putting them there! - as the previous poster hadn't mentioned the fact. 

I confess that I did not check the description given by the previous poster  before doing so. You're quite right; as written it does not correspond to the usual meaning of the term.

Apologies if I contributed to a confusion...

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