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* R FAQ: (R-FAQ).               The R statistical system FAQ.
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* R FAQ: (R-FAQ).               The R statistical system FAQ.
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END-INFO-DIR-ENTRY
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END-INFO-DIR-ENTRY
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   R FAQ
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   R FAQ
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Frequently Asked Questions on R
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Frequently Asked Questions on R
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Version 1.8-40, 2004-02-13
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Version 1.8-42, 2004-02-19
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ISBN 3-900051-01-1
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ISBN 3-900051-01-1
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Kurt Hornik
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Kurt Hornik
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Table of Contents
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Table of Contents
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extensions to R to facilitate running R scripts through the CGI interface
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extensions to R to facilitate running R scripts through the CGI interface
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to a web server.  It is easily installed using Apache under Linux and in
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to a web server.  It is easily installed using Apache under Linux and in
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principle should run on any platform that supports R and a web server
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principle should run on any platform that supports R and a web server
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provided that the installer has the necessary security permissions.
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provided that the installer has the necessary security permissions.
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   *Rcgi* is a CGI WWW interface to R by Mark J. Ray
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   *Rcgi* is a CGI WWW interface to R by MJ Ray <mjr@dsl.pipex.com>.  It
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<mjr@stats.mth.uea.ac.uk>.  It had the ability to use "embedded code": you
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had the ability to use "embedded code": you could mix user input and code,
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could mix user input and code, allowing the HTML author to do anything from
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allowing the HTML author to do anything from load in data sets to enter
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load in data sets to enter most of the commands for users without writing
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most of the commands for users without writing CGI scripts.  Graphical
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CGI scripts.  Graphical output was possible in PostScript or GIF formats
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output was possible in PostScript or GIF formats and the executed code was
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and the executed code was presented to the user for revision.  However, it
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presented to the user for revision.  However, it is not clear if the
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is not clear if the project is still active and recent attempts to contact
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the author or find the package have failed.  Currently, a modified version
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project is still active.  Currently, a modified version of *Rcgi* by Mai
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of *Rcgi* by Mai Zhou <mai@ms.uky.edu> (actually, two versions: one with
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Zhou <mai@ms.uky.edu> (actually, two versions: one with (bitmap) graphics
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(bitmap) graphics and one without) as well as the original code are
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and one without) as well as the original code are available from
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available from `http://www.ms.uky.edu/~statweb'.
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`http://www.ms.uky.edu/~statweb'.
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5 R Add-On Packages
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5 R Add-On Packages
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*******************
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*******************
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5.1 Which add-on packages exist for R?
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5.1 Which add-on packages exist for R?
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     Functions for general likelihood exploration (MLE, MCMC, CIs).
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     Functions for general likelihood exploration (MLE, MCMC, CIs).
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*BradleyTerry*
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*BradleyTerry*
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     Specify and fit the Bradley-Terry model and structured versions.
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     Specify and fit the Bradley-Terry model and structured versions.
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*BsMD*
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     Bayes screening and model discrimination follow-up designs.
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*CDNmoney*
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*CDNmoney*
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     Components of Canadian monetary aggregates.
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     Components of Canadian monetary aggregates.
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*CGIwithR*
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*CGIwithR*
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     Facilities for the use of R to write CGI scripts.
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     Facilities for the use of R to write CGI scripts.
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     phase is ambiguous.
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     phase is ambiguous.
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*hdf5*
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*hdf5*
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     Interface to the NCSA HDF5 library.
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     Interface to the NCSA HDF5 library.
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*hett*
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     Functions for the fitting and summarizing of heteroscedastic
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     t-regression.
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*hier.part*
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*hier.part*
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     Hierarchical Partitioning: variance partition of a multivariate data
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     Hierarchical Partitioning: variance partition of a multivariate data
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     set.
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     set.
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*homals*
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*homals*
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     processes.
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     processes.
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1911
 
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*its*
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*its*
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     An S4 class for handling irregular time series.
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     An S4 class for handling irregular time series.
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*kernlab*
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     Kernel-based machine learning methods including support vector
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     machines.  (Currently in `1.9.0/Other'.)
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*knnTree*
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*knnTree*
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     Construct or predict with k-nearest-neighbor classifiers, using
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     Construct or predict with k-nearest-neighbor classifiers, using
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     cross-validation to select k, choose variables (by forward or
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     cross-validation to select k, choose variables (by forward or
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     backwards selection), and choose scaling (from among no scaling,
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     backwards selection), and choose scaling (from among no scaling,
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     scaling each column by its SD, or scaling each column by its MAD).
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     scaling each column by its SD, or scaling each column by its MAD).
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     approximations.
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     approximations.
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2019
*mclust*
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*mclust*
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     Model-based cluster analysis: the 2002 version of MCLUST.
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     Model-based cluster analysis: the 2002 version of MCLUST.
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*mclust1998*
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     Model-based cluster analysis: the 1998 version of MCLUST.
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*mda*
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*mda*
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     Code for mixture discriminant analysis (MDA), flexible discriminant
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     Code for mixture discriminant analysis (MDA), flexible discriminant
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     analysis (FDA), penalized discriminant analysis (PDA), multivariate
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     analysis (FDA), penalized discriminant analysis (PDA), multivariate
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     additive regression splines (MARS), adaptive back-fitting splines
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     additive regression splines (MARS), adaptive back-fitting splines
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     (BRUTO), and penalized regression.
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     (BRUTO), and penalized regression.
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*multidim*
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*multidim*
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     Multidimensional descriptive statistics: factorial methods and
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     Multidimensional descriptive statistics: factorial methods and
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     classification.
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     classification.
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*multinomRob*
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     Overdispersed multinomial regression using robust (LQD and tanh)
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     estimation.
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*multiv*
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*multiv*
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     Functions for hierarchical clustering, partitioning, bond energy
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     Functions for hierarchical clustering, partitioning, bond energy
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     algorithm, Sammon mapping, PCA and correspondence analysis.
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     algorithm, Sammon mapping, PCA and correspondence analysis.
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*mvbutils*
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*mvbutils*
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     approximation error.
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     approximation error.
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*randomForest*
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*randomForest*
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     Breiman's random forest classifier.
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     Breiman's random forest classifier.
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-
 
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*ref*
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     Functions for creating references, reading from and writing ro
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     references and a memory efficient refdata type that transparently
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     encapsulates matrices and data frames.
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*relimp*
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*relimp*
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     Functions to facilitate inference on the relative importance of
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     Functions to facilitate inference on the relative importance of
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     predictors in a linear or generalized linear model.
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     predictors in a linear or generalized linear model.
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*rgdal*
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*rgdal*