Re: [Rd] small bug in gl1ce, package lasso2 (PR#8280)

From: <ripley_at_stats.ox.ac.uk>
Date: Fri 04 Nov 2005 - 05:52:12 GMT


Please do read the FAQ:

   Finally, check carefully whether the bug is with R, or a contributed    package. Bug reports on contributed packages should be sent first to    the package maintainer, and only submitted to the R-bugs repository    by package maintainers, mentioning the package in the subject line.

You are not the maintainer, so this is the wrong place.

On Fri, 4 Nov 2005 izmirlig@mail.nih.gov wrote:

> Full_Name: Grant Izmirlian
> Version: 2.2.0
> OS: SuSe Linux version 9.2
> Submission from: (NULL) (156.40.34.177)
>
>
> Sorry about the last submission, my bug-fix had an error in it because ifelse
> doesn't vectorize. I'll repost with the correct bug-fix.
> -------------------------------------------------------------------------------
> The option exists to include all parameters, including the intercept, in the L-1
> constraint, by specifying the argument, sweep.out=NULL, explicitly in the
> call. However, upon doing this, the function stops with an error report
> "Matrix build from transformed variables has a constant column"
>
> I was able to fix it as follows. In the following line, taken from the same
> block of code producing the stop error, modify the existing line from
>
> X.to.C.stds <- sqrt(apply(X.to.C.w, 2, var))
>
> to
>
>
> X.to.C.stds <- (!is.null(sweep.out)) *
> c(1,sqrt(apply(X.to.C.w[,-is.null(sweep.out)], 2, var))) +
>
> (is.null(sweep.out)) * sqrt(apply(X.to.C.w,2,var)))
>
> That should work.
>
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>
>

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Received on Fri Nov 04 17:02:58 2005

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