The link from
http://cran.r-project.org/src/contrib/PACKAGES.html#randomForest seems to be
broken. To get the file try
http://cran.r-project.org/src/contrib/randomForest_3.3-4.tar.gz
instead.
> -----Original Message-----
> From: Liaw, Andy [mailto:andy_liaw at merck.com]
> Sent: Thursday, September 26, 2002 8:08 PM
> To: 'r-announce at stat.math.ethz.ch'
> Subject: new patched version of randomForest
>
>
>
> There's now a new version of randomForest (3.3-4) on CRAN.
> Changes from the
> last version include:
>
> o "Unsupervised learning" now works again.
>
> o Fixed a bug in the original Fortran: the mtry variables chosen
> to split each node are now sampled without replacement.
>
> o Variable importance for regression now works correctly (i.e.,
> reproducible when random seed is set). The problem was simply
> un-initialized array. The problem is also in the original
> Fortran code, so users of that beware!
>
> o A new option keep.forest (default TRUE), which, when set to FALSE,
> supresses the `forest' component of the returned object. This
> can reduce memory usage and execution time significantly, if
> prediction of test set is not needed.
>
> o The default value of mtry is now set to sqrt(p) for classification
> and p/3 for regression (where p is the number of predictors),
> consistent with Prof. Breiman's suggestion.
>
> Questions/comments/bug-reports/patches welcomed!
>
> Regards,
> Andy
> Andy I. Liaw, PhD
> Biometrics Research Phone: (732) 594-0820
> Merck & Co., Inc. Fax: (732) 594-1565
> P.O. Box 2000, RY84-16 Rahway, NJ 07065
> mailto:andy_liaw at merck.com
>
>
>
>
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