[R] NextMethod in boxcox
gunter.berton at gene.com
Thu Feb 13 23:59:37 CET 2014
Have you tried:
Genentech Nonclinical Biostatistics
"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
H. Gilbert Welch
On Thu, Feb 13, 2014 at 2:17 PM, Gene Leynes <gleynes+r at gmail.com> wrote:
> I was trying to understand the boxcox function in MASS to get a better
> understanding of where and how the log-Likelihood values are calculated.
> By using "debug(boxcox)" I found this code while running the examples:
>> m <- length(lambda)
>> object <- lm(object, y = TRUE, qr = TRUE, ...)
>> result <- NextMethod()
> Can someone tell me how this is optimizing the values for Lambda? I'm
> assuming that it has something to do with the qr decomposition that happens
> in lm?
> Thank you,
> Notes and disclaimers:
> - Yes, I read the help for NextMethod and boxcox.
> - I don't think my OS / R / MASS versions are relevant but if you must
> know I happen to be on Windows 8 right now and using R version 3.0.2
> (2013-09-25) -- "Frisbee Sailing", Platform: x86_64-w64-mingw32/x64
> (64-bit). MASS version is 7.3-29.
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> and provide commented, minimal, self-contained, reproducible code.
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