Below ...

-- Bert

On Wed, Jan 2, 2013 at 9:54 PM, David Winsemius <dwinsemius@comcast.net>wrote:
...


> Search on "orthogonal polynomials".
>

Yes, but this does not explain what these have to do with ordered factors
and contrasts in a linear model.
That information is contained in "An Introduction to R," the tutorial that
ships with R and which the OP should have perused before posting. Detailed
explanation beyond that is too technical for here, I would say.

-- Bert



>
>
>> Note that my question is not on lm (I think), but rather on how lm
>> outputs the results of regressions involving ordered predictors. Some
>> references would be great.
>>
>> Please post responses to this mailing list.
>>
>>
> As always.
>
>  Thanks very much again for all your help!
>>
>>
>> --
>>
>
>
> David Winsemius, MD
> Alameda, CA, USA
>
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> PLEASE do read the posting guide http://www.R-project.org/**
> posting-guide.html <http://www.R-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm

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