See the developer site, e.g.
http://developer.r-project.org/model-fitting-functions.txt .
That is where specialized info is (and this is specialized).
On 06/03/2014 18:19, Therneau, Terry M., Ph.D. wrote:> An issue came up with the rms package today that makepredictcall would
> solve, and I was going to suggest it to the author. But looking in the
> help documents I couldn't find any reference to it. There is a manual
> page, but it does not give much aid in creating code for a new
> transformation function. Did I miss something?
>
> If not, I'd be willing to draft a paragraph about that which could be
> added to the extensions document. I figured it out, somehow, for the
> pspline function of the survival package. Submit such draft to ____?
> The naresid function would be another useful addition.
>
> Terry Therneau
>
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--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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