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README

1 General Information: README
*****************************

This is the README file for the distribution of ESS version

   5.3.11

   ESS is a GNU Emacs and XEmacs mode for interactive statistical
programming and data analysis.  Languages supported: the S family (S,
S-PLUS and R), SAS, BUGS/JAGS, Stata and XLispStat.  ESS grew out of the
desire for bug fixes and extensions to S-mode and SAS-mode as well as a
consistent union of their features in one package.

   Installation instructions are provided in sections for both Unix and
Windows; see below.

   The current development team is led by Martin Maechler since August
2004. Former project leader A.J. (Tony) Rossini
(<rossini@blindglobe.net>) did the initial port to XEmacs and has been
the primary coder.  Martin Maechler (<maechler@stat.math.ethz.ch>) and
Kurt Hornik (<Kurt.Hornik@R-project.org>) have assisted with the S
family and XLispStat.  Stephen Eglen (<stephen@gnu.org>) has worked
mostly on R support.  Richard M. Heiberger (<rmh@temple.edu>) has
assisted with S/S-PLUS development for Windows.  Richard and Rodney A.
Sparapani (<rsparapa@mcw.edu>) have done much of the work improving SAS
batch and interactive support.  Rodney has also extended ESS to support
BUGS/JAGS and has an interest in improving Stata support.

   We are grateful to the previous developers of S-mode (Doug Bates, Ed
Kademan, Frank Ritter, David M. Smith), SAS-mode (Tom Cook) and
Stata-mode (Thomas Lumley).

   Table of Contents

   * License

   * Stability

   * Requirements

   * Latest Version

   * Installation

   * Starting an ESS Process

   * New Features

   * Current Features

   * Reporting Bugs

   * Mailing Lists

   * Authors

1.1 License
===========

ESS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.

   ESS is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
in the file COPYING in the same directory as this file for more details.

1.2 Stability
=============

Versions 5.3.x are meant to be release-quality versions.  While some
new features are being introduced, we are cleaning up and improving the
interface.  We know about some remaining documentation inconsistencies.
Patches or suggested fixes with bug reports are much appreciated!

1.3 Requirements
================

ESS has been tested with

   * R >=0.49

   * S-PLUS 3.3-4, 4.5, 2000, 5.0-1, 6.0-2, 7.0, 8.0

   * S4

   * SAS >=6.12

   * BUGS 0.5, 0.6

   * JAGS 1.0

   * Stata >=6.0 (command line only)

   on the following platforms

   * Linux/x86 (all)

   * Solaris (all)

   * MS Windows 98/NT/2000/XP (R, S-PLUS, SAS interactive only, and
     BUGS)

   * Apple Mac OS X 10.4-5 (R, JAGS, Stata)

   with the following versions of emacs

   * GNU Emacs 20.3-7, 21.1, 21.3-4, 22.1

   * XEmacs 21.4.0-8, 21.4.9-13(1), 21.4.14-15, 21.4.17-21 (betas not
     supported, but 21.5.23+ may work)

   ---------- Footnotes ----------

   (1) require the files.el patch to revert-buffer for the Local
Variables updating problem

1.4 Getting the Latest Version
==============================

The latest released version of ESS is always available on the web at:
ESS web page (http://ess.r-project.org) or StatLib
(http://lib.stat.cmu.edu/general/ESS/)

   The latest development version of ESS is available via
`https://svn.R-project.org/ESS/', the ESS Subversion repository.  If
you have a Subversion client (see `http://subversion.tigris.org/'), you
can download the sources using:
     % svn checkout https://svn.r-project.org/ESS/trunk PATH
   which will put the ESS files into directory PATH.  Later, within
that directory, `svn update' will bring that directory up to date.
Windows-based tools such as TortoiseSVN are also available for
downloading the files.  Alternatively, you can browse the sources with a
web browser at: ESS SVN site (https://svn.r-project.org/ESS/trunk).
However, please use a subversion client instead to minimize the load
when retrieving.

   If you remove other versions of ESS from your emacs load-path, you
can then use the development version by adding the following to .emacs:

     (load "/path/to/ess-svn/lisp/ess-site.el")

   Note that https is required, and that the SSL certificate for the
Subversion server of the R project is

     Certificate information:
      - Hostname: svn.r-project.org
      - Valid: from Jul 16 08:10:01 2004 GMT until Jul 14 08:10:01 2014 GMT
      - Issuer: Department of Mathematics, ETH Zurich, Zurich, Switzerland, CH
      - Fingerprint: c9:5d:eb:f9:f2:56:d1:04:ba:44:61:f8:64:6b:d9:33:3f:93:6e:ad

(currently, there is no "trusted certificate").  You can accept this
certificate permanently and will not be asked about it anymore.

1.5 Installation
================

1.6 Unix installation
=====================

For a Unix or Unix-like installation, please follow the next steps.
Retrieve the latest tgz file (`ess-VERSION.tgz') from ESS downloads
area (http://ess.r-project.org/index.php?Section=download).

   _GNU Emacs Simple Instructions:_ for recent versions of Emacs (22.x
or higher) and ESS, the installation process is simple.

  1. Extract all the files from `ess-VERSION.tgz' when you are in the
     current working directory of `/usr/local/share/emacs/site-lisp'
     which exists for packages like ESS (or for Mac OS X
     `/Applications/Emacs.app/Contents/MacOS/Resources/site-lisp'):
          %prompt gtar zxf ess-VERSION.tgz            # for GNU tar
          %prompt gunzip < ess-VERSION.tgz | tar xf - # for Unix tar

  2. Then, add the line
          (require 'ess-site)
     to `~/.emacs' and restart Emacs.

  3. If you see a buffer named `*ESS*', then the simple instructions
     were most likely successful.  If not, then read further.

  4. It could be that you have an older version of Emacs, some other
     problem with your installation or you are not a sysadmin.
     Whatever the case, you may need to edit `ess-site.el' manually.
     If that is the case, then you should create a directory just for
     ESS like `~/ess' or `/usr/local/ess' and unpack ESS there.  That
     way, your changes to `ess-site.el' will not be lost if you update
     Emacs later.

  5. Replace the line above with
          (load "~/ess/ess-VERSION/lisp/ess-site")
     in `~/.emacs' and restart Emacs.

  6. If you see a buffer named `*ESS*', then the manual instructions
     were most likely successful.  If not, then send a query to
     <ess-help-request@stat.math.ethz.ch> explicitly describing your
     problem and your environment including operating system, Emacs
     version, ESS version, etc.

   _XEmacs Simple Instructions:_ for recent versions of XEmacs (21.x or
higher) and ESS, the installation process is simple.

  1. Extract all the files from `ess-VERSION.tgz' when you are in the
     current working directory of
     `/usr/local/LOCATION/xemacs/site-packages' which exists for
     packages like ESS where `LOCATION' is `lib' for legacy
     installations and `share' now (or for Mac OS X
     `/Applications/XEmacs.app/Contents/MacOS/Resources/site-packages'):
          %prompt gtar zxf ess-VERSION.tgz            # for GNU tar
          %prompt gunzip < ess-VERSION.tgz | tar xf - # for Unix tar

  2. Then, add the line
          (require 'ess-site)
     to `~/.xemacs/init.el' and restart XEmacs.

  3. If you see a buffer named `*ESS*', then the simple instructions
     were most likely successful.  If not, then read further.

  4. It could be that you have an older version of XEmacs, some other
     problem with your installation or you are not a sysadmin.
     Whatever the case, you may need to edit `ess-site.el' manually.
     If that is the case, then you should create a directory just for
     ESS like `~/ess' or `/usr/local/ess' and unpack ESS there.  That
     way, your changes to `ess-site.el' will not be lost if you update
     XEmacs later.

  5. Replace the line above with
          (load "~/ess/ess-VERSION/lisp/ess-site")
     in `~/.xemacs/init.el' and restart XEmacs.

  6. If you see a buffer named `*ESS*', then the manual instructions
     were most likely successful.  If not, then send a query to
     <ess-help-request@stat.math.ethz.ch> explicitly describing your
     problem and your environment including operating system, XEmacs
     version, ESS version, etc.

  1. (OPTIONAL) COMPILING E-LISP:

     Edit the default locations of `LISPDIR', `INFODIR' and `ETCDIR' in
     Section 1 of `Makeconf' (if you are using XEmacs, then edit the
     XEmacs subsection in Section 1).

     You can compile those files by:
          make all

     When that completes successfully, install the compiled files:
          make install


1.7 Microsoft Windows installation
==================================

For Microsoft Windows installation, please follow the next steps.
Retrieve the latest zip file (`ess-VERSION.zip') from ESS downloads
area (http://ess.r-project.org/index.php?Section=download).

   _GNU Emacs Simple Instructions:_ for recent versions of Emacs (22.x
or higher) and ESS, the installation process is simple.

  1. Extract all the files from `ess-VERSION.zip' (by double clicking
     on it and selecting "Extract all files" which launches the Folders
     Extraction Wizard) into the `site-lisp' directory that exists for
     packages like ESS.  If GNU Emacs was installed in the default
     location, then this directory can be found somewhere like
     `C:\Program Files\GNU Emacs\emacs-22.x\site-lisp'.

  2. Add the line
          (require 'ess-site)
     to `~/.emacs' and restart Emacs.

  3. If you see a buffer named `*ESS*', then the simple instructions
     were most likely successful.  If not, then read further.

  4. It could be you have an older version of Emacs or some other
     problem with your installation.  Either way, you may need to edit
     `C:\ess\ess-VERSION\lisp\ess-site.el' manually.  If that is the
     case, then you should create a directory just for ESS like
     `C:\ess' and unpack ESS there.  That way, your changes to
     `C:\ess\ess-VERSION\lisp\ess-site.el' will not be lost if you
     update Emacs later.

  5. Replace the line above with
          (load "C:/ess/ess-VERSION/lisp/ess-site")
     in `~/.emacs' and restart Emacs.

  6. If you see a buffer named `*ESS*', then the manual instructions
     were most likely successful.  If not, then send a query to
     <ess-help-request@stat.math.ethz.ch> explicitly describing your
     problem and your environment including operating system, Emacs
     version, ESS version, etc.

   _XEmacs Simple Instructions:_ for recent versions of XEmacs (21.x or
higher), the installation process is much simpler.  Hopefully, these
simple instructions will work for you.  If not, then more detailed,
manual instructions follow.

  1. Extract all the files from `ess-VERSION.zip' (by double clicking
     on it and selecting "Extract all files" which launches the Folders
     Extraction Wizard) into the `site-packages' directory that exists
     for packages like ESS.  If XEmacs was installed in the default
     location, then this directory can be found at `C:\Program
     Files\XEmacs\site-packages'.

  2. XEmacs requires the `HOME' environment variable to be defined.
     You can create it by visiting the following dialog: `My
     Computer->Control Panel->System->Advanced->Environment Variables'
     In the User variables window, press New.  And create a variable
     named `HOME' with a value something like (you must use forward
     slashes `/' rather than backslashes `\') `c:/Documents and
     Settings/%USERNAME%/Application Data'.  Then press OK for that
     window and press OK for the main window.  _If you also have GNU
     Emacs installed, GNU Emacs will recognize `HOME' and expand `~'
     accordingly._

  3. Now launch XEmacs and do a `C-x C-f' followed by a `~'.  From the
     Subdir menu, select Create Directory, and enter `.xemacs'

  4. Add the line
          (require 'ess-site)
     to `~/.xemacs/init.el' and restart XEmacs.

  5. If you see a buffer named `*ESS*', then the simple instructions
     were most likely successful.  If not, then read further.

  6. It could be you have an older version of XEmacs or some other
     problem with your installation.  Either way, you may need to edit
     `C:\ess\ess-VERSION\lisp\ess-site.el' manually.  If that is the
     case, then you should create a directory just for ESS like
     `C:\ess' and unpack ESS there.  That way, your changes to
     `C:\ess\ess-VERSION\lisp\ess-site.el' will not be lost if you
     update XEmacs later.

  7. Replace the line above with
          (load "C:/ess/ess-VERSION/lisp/ess-site")
     in `~/.xemacs/init.el' and restart XEmacs.

  8. If you see a buffer named `*ESS*', then the manual instructions
     were most likely successful.  If not, then send a query to
     <ess-help-request@stat.math.ethz.ch> explicitly describing your
     problem and your environment including operating system, XEmacs
     version, ESS version, etc.

   Now, you should be ready to use ESS.  For example, to edit
statistical programs, load the files with the requisite extensions
(".sas" for SAS, ".S" or "s" or "q" or "Q" for S-PLUS, ".r" or ".R" for
R, and ".lsp" for XLispStat).  One further step is needed if you wish to
run statistical processes, see below.

   To run statistical processes under ESS, Windows users will need to
make sure that the directories for the software they will be using is
in the PATH environment variable.

   On Windows NT/2000/XP, add the directories to the PATH using the `My
Computer->Control Panel->System->Advanced->Environment Variables' menu.
Note that the directory containing the program is added to the PATH,
not the program itself.  One such line is needed for each software
program.  Be sure to use the abbreviation `progra~1' and not the long
version with embedded blanks as this may cause problems.  Also, make
sure to use backslashes `\' since Windows requires them.

   An alternative, for R users, is that rather than adjusting the PATH
variable, you can add the following to your emacs initialization file
(and restart emacs):
     (setq inferior-R-program-name "c:/progra~1/R/R-2.2.1/bin/Rterm.exe")
   This assumes that you have installed R-2.2.1 in the default location.
Change the path otherwise to point to other locations.

   Windows users who place S-PLUS anywhere other than the default
location will also need to add the following three lines (properly
adjusted for their location):
     (setq-default inferior-S+6-program-name
         "c:/progra~1/Insightful/SPLUS70/cmd/Splus")
     (setq-default inferior-Sqpe+6-SHOME-name
         "c:/progra~1/Insightful/SPLUS70")
     (setq-default inferior-Sqpe+6-program-name
         "c:/progra~1/Insightful/SPLUS70/cmd/Sqpe.exe")
   The above example uses the default location of S-PLUS in
`c:\progra~1\Insightful'.  Please note that ESS considers S-PLUS 6, 7,
and 8 to be variants of S+6.

   These users may also need to modify the emacs variable
`ess-SHOME-versions' to match their installation in order to get the
full set of S-PLUS versions on their machine into the ESS menu.

   To start the S-PLUS [678].x GUI from ESS under emacs:
  1. If you use Cygwin bash as your primary shell, then
          M-x S
          (or `M-x S+6').

  2. If you use the MSDOS prompt window as your primary shell, then
          M-x S+6-msdos
     You will then be asked for a pathname ("S starting data
directory?"), from which to start the process.  The prompt will propose
your current directory as the default.  ESS will start the S-PLUS GUI.
There will be slight delay during which emacs is temporarily frozen.
ESS will arrange for communication with the S-PLUS GUI using the DDE
protocol.  Send lines or regions from the emacs buffer containing your
S program (for example, `myfile.s') to the S-PLUS Commands Window with
the `C-c C-n' or `C-c C-r' keys.  (If you are still using S-PLUS 4.x or
2000,\ then use `M-x S+4' or `M-x S+4-msdos'.)

   To start an S-PLUS [678].x session inside an emacs buffer--and
without the S-PLUS GUI:
     M-x Sqpe
     (or `M-x Sqpe+6').
   This works with both the bash and msdos shells.  You will then be
asked for a pathname ("S starting data directory?"), from which to
start the process.  The prompt will propose your current directory as
the default.  You get Unix-like behavior, in particular the entire
transcript is available for emacs-style search commands.  Send lines or
regions from the emacs buffer containing your S program (for example,
`myfile.s') to the *S+6* buffer with the `C-c C-n' or `C-c C-r' keys.
Interactive graphics are available with Sqpe by using the java library
supplied with S-PLUS 6.1 and newer releases.  Enter the commands:
     library(winjava)
     java.graph()
   Graphs can be saved from the `java.graph' device in several formats,
but not PostScript.   If you need a PostScript file you will need to
open a separate `postscript' device.  (If you are still using S-PLUS
4.x or 2000, then use `M-x Sqpe+4'.)

   To connect to an already running S-PLUS GUI (started, for example,
from the S-PLUS icon):
     M-x S+6-existing
   or
     M-x S+6-msdos-existing
   You will then be asked for a pathname ("S starting data
directory?"), from which to start the process.  The prompt will propose
your current directory as the default.  ESS will arrange for
communication with the already running S-PLUS GUI using the DDE
protocol.  Send lines or regions from the emacs buffer containing your
S program (for example, `myfile.s') to the S-PLUS Commands Window with
the `C-c C-n' or `C-c C-r' keys.  (If you are still using S-PLUS 4.x or
2000,  then use `M-x S+4-existing' or `M-x S+4-msdos-existing'.)

   If you wish to run R, you can start it with:
     M-x R

   XLispStat can not currently be run with
     M-x XLS
   Hopefully, this will change.  However, you can still edit with
emacs, and cut and paste the results into the XLispStat *Listener*
Window under Microsoft Windows.

1.8 Starting an ESS process
===========================

To start an S session on Unix or on Windows when you use the Cygwin
bash shell, simply type `M-x S RET'.

   To start an S session on Windows when you use the MSDOS prompt
shell, simply type `M-x S+6-msdos RET'.

1.9 Current Features
====================

   * Languages Supported:
        * S family (S 3/4, S-PLUS 3.x/4.x/5.x/6.x/7.x/8.x, and R)

        * SAS

        * BUGS/JAGS

        * Stata

        * XLispStat including Arc and ViSta

   * Editing source code (S family, SAS, BUGS/JAGS, XLispStat)
        * Syntactic indentation and highlighting of source code

        * Partial evaluation of code

        * Loading and error-checking of code

        * Source code revision maintenance

        * Batch execution (SAS, BUGS/JAGS)

        * Use of imenu to provide links to appropriate functions

   * Interacting with the process (S family, SAS, XLispStat)
        * Command-line editing

        * Searchable Command history

        * Command-line completion of S family object names and file
          names

        * Quick access to object lists and search lists

        * Transcript recording

        * Interface to the help system

   * Transcript manipulation (S family, XLispStat)
        * Recording and saving transcript files

        * Manipulating and editing saved transcripts

        * Re-evaluating commands from transcript files

   * Help File Editing (R)
        * Syntactic indentation and highlighting of source code.

        * Sending Examples to running ESS process.

        * Previewing

1.10 New Features
=================

     Changes/New Features in 5.3.11:
        * ESS[SAS]: work around buglet in Emacs 22.2 & 22.3 which fails
          to  set case-fold fontification automatically.

        * Rd mode: support new keyword 'Rdversion'

        * ESS[R]: now again works with Emacs 21.x

     Changes/New Features in 5.3.10:
        * Fixed noweb-mode bug accidentally introduced into 5.3.9

        * In noweb-mode, e.g., Rnw-mode, electric "<" also inserts
          closing "@".   Further, the code chunk boundaries are better
          kept up-to-date, such that  code[R] <-> text[LaTeX] minor
          mode switching should happen more reliably.

        * In noweb-mode, fix a buglet in rare [Enter] or [Tab]
          behavior; further,  by default disable the former `[[' ..
          `]]'  code-protection-when-filling  behavior which has been
          found to be buggy.

     Changes/New Features in 5.3.9:
        * ESS[SAS]: evince PDF viewer now supported as well; search
          order: evince, Xpdf, Adobe/Acrobat Reader

        * ESS[R]: added support for Roxygen, potentially to be extended.

        * ESS[S] (and R): inferior (`*R*') and transcript modes no
          longer fontify language keywords (such as `for', `in', etc).

        * iESS[Stata]: Customize the `ess-sta-delimiter-friendly'
          setting to t to convert embedded semi-colons to newlines for
          Stata processing.

        * Sweave fix for embedded blanks in PDF reader and PDF files

        * Several fixes for Major Mode Convention violations in
          `ess-mode' and `noweb-mode'.

        * ESS[JAGS]: `M-x comment-region' now available!

        * ESS[S] The `ess-swv-*' commands (and keybindings) are now in
          a submenu of the "Noweb" menu, when editing Sweave files.

     Changes/New Features in 5.3.8:
        * ESS[JAGS]: more separation from ESS[BUGS] (as much as is
          currently planned); now `C-c C-c' on an empty `.jmd' creates
          a template as it should; symbolic links are created for CODA
          output so BOA is happy: from `index.txt' to `.ind' and
          `chain#.txt' to `#.out'

        * ESS[SAS]: buffer-local `ess-sas-submit-command' and
          `ess-sas-submit-command-options' now recognized by
          `ess-sas-submit-region'

        * ESS[S]: When trying to evaluate code in an S language buffer
          and  there is no associated process, now start R
          automatically instead of  signalling an error.  Also, restart
          R if there is an associated process  which is not running.
          However, do not start R just via the "electric"  `('
          (`ess-r-args-auto-show').

        * ESS[S]: For (one-line) functions withOUT '{ .. }' bodys, the
          end  of function is now correctly found more often.  This
          notably improves  `C-c C-c'
          (`ess-eval-function-or-paragraph-and-step').

        * ESS[JAGS]: cleanup/re-organization of elisp code; symbolic
          links for CODA output are now only created by the new JAGS
          `system' command in version 1.0.3; specify whether this
          command is available via `ess-jags-system'; if not present,
          then no links are created so that the `*shell*' buffer does
          not become unresponsive during the batch run

     Changes/New Features in 5.3.7:
        * ESS: `ess-default-style' now *is* customizable, i.e.,
          changing its value in `~/.emacs' now does have the desired
          effect.

        * ESS: `ess-font-lock-mode' is a new variable (default: t)
          which controls whether font-locking is enabled in ESS buffers.

        * ESS[R]: for XEmacs on Windows; another tweak to find R
          versions

        * ESS[SAS]: font-locking updated for ODS and SAS Bayesian
          Procedures; a more consistent handling of SAS options by
          `ess-sas-submit-command-options' which is buffer-local;
          portable snooze for MS Windows via customize-able
          `ess-sleep-for' (floats welcome); Xpdf now supported as a PDF
          viewer

        * ESS[Rnw]: now also works with "emacs -nw" and Emacs 22.

        * ESS[JAGS]: now requires JAGS 1.0 (see the new ESS for JAGS
          help section for more information): both need work;
          suggestions welcome

        * ESS[R]: [TAB] completion now uses the R-internal completion
          mechanism (for R >= 2.5.0).

        * ESS[R] ([S]): interpretation of "_" as assignment has been
          removed in `ess-continued-statement-p' for R and S.

        * several internal code cleanups.

        * ESS[R]: An experimental version of a new command `Rgui' on MS
          Windows to send lines directly from emacs to `Rgui' is
          available in file `lisp/essd-rgui.el'.  Preliminary
          documentation is in file `doc/rgui-doc.txt'.

     Changes/New Features in 5.3.6:
        * ESS: for XEmacs, using "gnuclient" (without a "-q") works for
          things like fix() after M-x gnuserv-start has been done.

        * ESS[R]: M-x R-newest should now work in more situations on MS
          Windows, e.g., when R has been installed in a non-default
          "ProgramFiles"  directory tree.  In these cases, there's no
          need to specify the name (and  full path) of the R program
          anymore.

        * ESS[R]: For XEmacs, startup (with new tooltip code) works
          again.

     Changes/New Features in 5.3.5:
        * ESS[R] a new defun is available, `M-x R-newest', which will
          start the newest version of R that it can find on your system.

        * ESS[R] add Sven Hartenstein's "R function arguments tips"
          functionality, via new file `../lisp/essd-r-args.el'.   Note
          that this includes an "electric "("" behavior inside `R-mode'
          which is _active by default_ and can be customized via
          `ess-r-args-electric-paren'; i.e., use `(setq
          ess-r-args-electric-paren nil)' to turn it off.  Further,
          `ess-r-args-show-as' allows to switch to the "tooltip" mode.

        * ESS: functions `ess-get-pdf-viewer' and *-ps-viewer; built on
          new  customizable variables `ess-pdf-viewer-pref' and
          `ess-ps-viewer-pref'; currently used in `ess-swv-PDF' and
          `*-PS'.

        * ESS[R] Improved `ess-swv-PDF' to run pdf viewer only if
          pdflatex was ok

        * ESS[R] Improved `ess-swv-weave' to start R automatically if
          none is running.

        * ESS: Do no longer ask _which_ ESS process to use if there  is
          only one.

     Changes/New Features in 5.3.4:
        * ESS[R] now better work with options(error=recover); and the
          new default of CHM help files on windows.

        * ESS[R] some more cleanup in the "sweave" functions

        * miscellaneous fixes

     Changes/New Features in 5.3.3:
        * ESS[S] fix buglet (5.3.2 only) which left command prompt in
          "execute buffer" and hence help files.

        * new customizable variable `ess-display-buffer-reuse-frames'
          set to true (which changes default behavior) such that
          execution or help *frames* are reused.

     Changes/New Features in 5.3.2:
        * Classic BUGS now supported by `(require 'essd-bugs)' with
          ESS[BUGS]       and JAGS by `(require 'essd-jags)' with
          ESS[JAGS].  But, only one       of them can be used at a time
          since they don't play nice together.  Also,       `C-c C-c'
          is now bound to the function `ess-bugs-next-action'
          (`F12' has been retired).  And finally, note that
          `essl-bug.el'       is deprecated and the replacement is
          `essl-bugs.el'.

        * ESS[R] Improved some of the "Sweave-make"  functions (yet
          scarcely documented) in `ess-swv.el'.

        * ESS[S] No longer mess with .Last.value (nor in other
          "languages").

     Changes/New Features in 5.3.1:
        * See the docs for 2 ways to install ESS for XEmacs
            1. by uncommenting the XEmacs part of             Section 1
               of `Makeconf' and performing `make install'

            2. by unpacking either             `ess-5.3.1.tgz' or
               `ess-5.3.1.zip' into
               `PREFIX/lib/xemacs/site-packages' on unix or
               `PREFIX\XEmacs\site-packages' on windows

        * ESS[R]: fixed bugs so that Rterm.exe can be found by XEmacs

        * ESS[S]: `ess-toggle-S-assign-key' is slightly changed; in
          particular, the default `ess-assign-key' is now `C-x ='.

        * ESS[R]: `M-x R-site-search' is a new (slightly experimental)
          utility similar to R's `RSiteSearch(..)' but with the
          advantage of  using Emacs' preferred browser, see
          `browse-url-browser-function'

     Changes/New Features in 5.3.0:
        * ESS[BUGS]: sanely re-format statistical output, `.bog', from
          scientific notation to numbers rounded with 4 decimal places
          with `M-x ess-bugs-sci-round-to-4-dp'.

        * The keys for navigating among section headings in help buffers
          worked, but only for one language per session; they should
          now work for multiple languages.  (They were also broken on
          Windows machines.)

        * ESS[S] long standing buglets in the internal logic for loading
          lisp code on Windows.  Particularly fixed behavior in help
          mode with S-plus GUI.

        * New variable, `ess-use-inferior-program-name-in-buffer-name',
          which enables using the executable name instead of the
          dialect name for R. Feature request.

        * ESS[S] `ess-execute-screen-options' now also works correctly
          when there is more than one window *side-by-side* in the same
          frame and runs in the correct buffer also when there is more
          than one S buffer.

        * iESS[S] new functions `ess-eval-paragraph-and-step' and
          `ess-eval-function-or-paragraph-and-step' are bound to keys
          `C-c C-p' and `C-c C-c' respectively and to the menu in
          ESS-mode; also bound in the help mode (for evaluating
          examples).

        * ESS[S] new function `ess-toggle-S-assign-key' allows to
          assign the " <- " insertion to an arbitrary key.

     Changes/New Features in 5.2.12:
        * ESS[SAS]: `M-;' fixed, but the XEmacs function `comment-dwim'
          may be broken, if so, use `M-x comment-region' and `M-x
          uncomment-region' instead; only valid PROCs are fontified
          which is very helpful finding syntax errors (currently
          supported: BASE, ETS, FSP, GRAPH, IML, INSIGHT and STAT); the
          "feature" where `F'-keys take you to an empty buffer when the
          requested destination is a file that does not exist has been
          fixed, now the request results in a no-op.  Further, sas-mode
          now also works in simple terminals.

        * Rterm/Cygwin combination works under Microsoft Windows.

        * ESS[R]: internal calls use baseenv() instead of NULL and
          define 'baseenv' where needed.

        * New experimental support for installing ESS.  See the file
          `lisp/ess-install.el'.

     Changes/New Features in 5.2.11:
        * ESS Info entry and `dir' handled more effectively for GNU
          Emacs users

        * ESS[SAS]: temporary files created for batch submission of a
          region are now named based on the current file; see
          `ess-sas-file-root' for details; all `lag' and `dif'
          functions now fontified correctly

        * iESS[SAS]: fixed a few nagging bugs, however, still does not
          appear to work at this time; please let us know if you have
          any ideas.

        * ESS[S]: Support for running other versions of Splus has been
          added for unix.  Two new variables, `ess-s-versions' and
          `ess-s-versions-list', are used to tell ESS what other
          versions of Splus you would like to run.

     Changes/New Features in 5.2.10:
        * ESS[R]: ess-r-versions can no longer be customized (since the
          customization was not taking effect unless customizations
          were loaded before ESS).  Its value has been changed so that
          it will also find R executables beginning "R-devel" and
          "R-patched".  If you wish to change this variable, it must be
          set in your `.emacs' before ESS is loaded.

        * Installation with GNU Make enhanced:  unix and unix-like
          operating systems will now be able to install ESS for all
          users in either a GNU Emacs site-lisp or an XEmacs package
          configuration by editing `lisp/ess-site.el' and `Makeconf'
          accordingly, then issuing `make install'

        * ESS[S]: Filename completion (inside strings) now also works in
          XEmacs for R and S-plus.

     Changes/New Features in 5.2.9:
        * ESS[R] for Windows:  the \ directory character bug with
          respect to ess-load-file has been eradicated.

        * iESS[SAS]: `C-c C-r' and `C-c C-b' once again work as
          intended and documented.

        * ESS[S]: M-x ess-fix-EQ-assign is a bit more agressive.

        * ESS[S]: Imenu now also shows setAs(), etc.

        * ESS[R]: R function pattern enhanced with underlying code such
          that  `M-C-a' (`ess-beginning-of-function') etc now work for
          many more  cases, including S4 method definitions.

        * iESS[R]: myOwnhelp(1) no longer wrongly triggers help(1).

        * ESS[R]: Improved detection of bogus help buffers: valid help
          buffers containing with the string "no documentation"(e.g.
          contour)  were being treated as bogus.

        * ESS[R]: In R help buffers, if
          `options("help.try.all.packages" =  TRUE)' then `?rlm' will
          list which packages rlm is defined in.  This help  buffer is
          not bogus, but instead is now relabelled "*help[R](rlm in
          packages)*".

        * ESS[STA]: add "//" as comment starting character to
          syntax-table.

     Changes/New Features in 5.2.8:
        * iESS: [Tab] completes *file* names "inside string" as in
          earlier (<= 5.2.3) ESS versions.

     Changes/New Features in 5.2.7:
        * If you use Custom to change the variable ess-toolbar-items,
          the new toolbar is used in all subsequent ESS buffers.

        * ESS[SAS]: new feature:  if ess-sas-log-max >0 and your .log
          grows to more than ess-sas-log-max bytes, just the first
          ess-sas-log-max bytes are refreshed; this is helpful when
          your .sas program generates lots of error messages and gets
          too big for emacs to display

        * ESS[R/S]: `M-;' in R/S editing modes will now indent with
          either one or two hashes depending on context.

        * ESS[R]: David Whiting's Sweave extensions (to 'noweb') are
          now available (from ess-swv.el loaded by default).

     Changes/New Features in 5.2.6:
        * Removed non-ASCII characters in a few files.

        * ESS[R]: now works better when UTF-8 locale is active; in
          particular, you get correct directional quotes in R's startup
          message  for R-devel (unstable development version of R
          2.1.0) when using  environment variables LANGUAGE=en@quot
          LC_ALL=en_US.UTF-8

        * ESS[SAS]: toggling of .log mode improved (`F10'); toggling of
          .lst mode now also available (`C-F10'); killing all buffers
          associated with .sas program no longer bound to `C-F10' since
          its a bit overzealous.

        * S-Plus 7 for Windows is now recognized.

        * ESS[S] (incl. R): in auto-fill mode, strings are not wrapped
          anymore.

        * ESS[S] (incl. R): font-lock now correctly differs between R
          and S, e.g., for "_"; both now fontify warning(.) and S does
          terminate() additionally.

        * Support for `bell' aka `beep' aka `ding' aka `alarm' in all
          inferior modes: When \a is output "to the the console" at the
          beginning of a line, the bell is rung.

     Changes/New Features in 5.2.5:
        * ESS[R]: `C-c C-q' or `Quit S' from the menu now should work
          (again and less klunkily) and do not append `-exited' to the
          buffer name.  Further, the behavior of `(ess-cleanup)',
          called from ess-quit, now depends on the new customizable
          variable `ess-S-quit-kill-buffers-p' which defaults to `nil'.
          Consequently, the question _"Delete all buffers associated
          with ..?"_ will not be asked anymore by default.

        * ESS[SAS] - ess-ebcdic-to-ascii-search-and-replace will now
          work with the `recode' application as well which is available
          on many platforms

        * ESS[S] (incl. R): Name completion for slots of S4 objects now
          works!

     Changes/New Features in 5.2.4:
        * The documentation now includes an overview of how to use the
          emacs TAGS facility for S functions.  (The distribution also
          used to contain a directory `etc/other/Tags' where a ~1990
          version of `etags.c' was distributed; this is no longer
          relevant and so has been deleted.)

        * ESS[SAS] - When you are working with EBCDIC files on an ASCII
          platform, .log NOTEs may display as gibberish since the EBCDIC
          characters are not converted to ASCII prior to their display.
          So, the function ess-ebcdic-to-ascii-search-and-replace is
          provided for convenience and is bound to `C-F11'.  This
          function requires the `dd' command (only available on unix or
          unix-like platforms).

        * ESS: Completion of object names is now always done
          dynamically rather than allowing the option of using a
          pre-computed database (by `ess-create-object-name-db') since
          modern computers seem fast enough for dynamic completion.
          (We expect few users, if any, have been using the
          pre-computed database method.)

        * ESS: object completion in iESS buffers running on Windows was
          very slow (for GNU Emacs, but not XEmacs) and has now been
          fixed.  Further, it was more or less broken for all versions
          of S-plus 6.x, and has been fixed to work everywhere but with
          the Windows' GUI of S-plus.  The list of objects now shows
          unique names also when an object appears more than once in
          the search path.

        * ESS[R]: Completion of object names now also includes those
          starting with ".".

     Changes/New Features in 5.2.3:
        * ESS: When new inferior ESS processes are created, by default
          they will replace the current buffer (this restores behavior
          from pre 5.2.0). If you wish new ESS processes to start in
          another window of the current frame, set
          inferior-ess-same-window to nil.

        * New variables inferior-Splus-args and inferior-R-args provide
          a way to pass command line arguments to starting S and R
          processes.

     Changes/New Features in 5.2.2:
        * bug-fixes for 5.2.1 (require 'executable), html docs, etc.

        * ess-lisp-directory/../doc/info added to Info-directory-list
          if ess-info not found by info

        * ESS[R]: If you have other versions of R on your exec-path,
          such as "R-1.8.1" with Unix or "rw1081" with Windows, ESS
          will find them and create appropriate functions, such as `M-x
          R-1.8.1' or `M-x rw1081', for calling them.  By default only
          Unix programs beginning "R-1" and "R-2" and Windows programs
          parallel to the version of R in your exec-path will be found,
          but see ess-r-versions and ess-rterm-versions for ways to
          find other versions of R.

        * ESS[R]: Other versions of R, such as "R-1.8.1" on Unix and
          "rw1081" on Windows, are added to the "ESS / Start Process /
          Other" menu.

        * ESS[S]: If you have other versions of S-Plus on your Windows
          computer, such as S-Plus 6.1 or S-Plus 4.5, ESS will find
          them and create appropriate functions, such as `M-x splus61',
          for calling the console version (Sqpe) inside an emacs
          buffer.  By default only programs installed in the default
          location will be found, but see ess-SHOME-versions for ways
          to find other versions of S-Plus.

        * ESS[S]: Other versions of Sqpe on Windows, such as "splus61",
          are added to the "ESS / Start Process / Other" menu.

        * ESS[R]: (bug fix) ess-quit (bound to `C-c C-q') should now
          quit the inferior R process, when issued from either the
          inferior buffer, or from a .R buffer.

     Changes/New Features in 5.2.1:
        * ESS[S] (R and S-plus): now have toolbar support with icons to
          evaluate code in the inferior process or to switch there.
          This code is experimental and likely to change as XEmacs/Emacs
          issues get resolved. The toolbar should be enabled if your
          Emacs displays images, but can be disabled with the variable
          ess-use-toolbar.  Thanks to David Smith from Insightful for
          the S-plus logo.

        * ESS[SAS]: ess-sas-graph-view (`F12') enhanced; you can specify
          external file viewers for each graphics file type via the
          alist ess-sas-graph-view-viewer-alist; also .jpg/.gif are now
          handled by image-mode on XEmacs, if available, otherwise by
          graphics primitives as before

     Changes/New Features in 5.2.0:
        * ESS[BUGS]:  new info documentation!  now supports interactive
          processing thanks to Aki Vehtari (mailto:Aki.Vehtari@hut.fi);
          new architecture-independent unix support as well as support
          for BUGS v. 0.5

        * ESS[SAS]:  convert .log to .sas with ess-sas-transcript; info
          documentation improved; Local Variable bug fixes; SAS/IML
          statements/functions now highlighted; files edited remotely
          by ange-ftp/EFS/tramp are recognized and pressing SUBMIT
          opens a buffer on the remote host via the local variable
          ess-sas-shell-buffer-remote-init which defaults to "ssh";
          changed the definition of the variable
          ess-sas-edit-keys-toggle to boolean rather than 0/1; added
          the function ess-electric-run-semicolon which automatically
          reverse indents lines containing only "run;"; `C-F1' creates
          MS RTF portrait from the current buffer; `C-F2' creates MS
          RTF landscape from the current buffer; `C-F9' opens a SAS
          DATASET with PROC INSIGHT rather than PROC FSVIEW; "inferior"
          aliases for SAS batch:  `C-c C-r' for submit region, `C-c
          C-b' for submit buffer, `C-c C-x' for goto .log; `C-c C-y'
          for goto .lst

        * ESS[S]: Pressing underscore ("_") once inserts " <- " (as
          before); pressing underscore twice inserts a literal
          underscore.  To stop this smart behaviour, add
          "(ess-toggle-underscore nil)" to your .emacs after ess-site
          has been loaded; ess-dump-filename-template-proto (new name!)
          now can be customized successfully (for S language dialects);
          Support for Imenu has been improved; set ess-imenu-use-S to
          non-nil to get an "Imenu-S" item on your menubar; ess-help:
          Now using nice underlines (instead of `nuke-* ^H_')

        * ESS[R]:  After (require 'essa-r), `M-x ess-r-var' allows to
          load numbers from any Emacs buffer into an existing *R*
          process; `M-x ess-rdired' gives a "directory editor" of R
          objects; fixed ess-retr-lastvalue-command, i.e. .Last.value
          bug (thanks to David Brahm)

        * ESS: Support for creating new window frames has been added to
          ESS.  Inferior ESS processes can be created in dedicated
          frames by setting inferior-ess-own-frame to t.  ESS help
          buffers can also open in new frames; see the documentation
          for ess-help-own-frame for details.  (Thanks to Kevin Rodgers
          for contributing code.)

     Changes/New Features in 5.1.24:
        * The version number is now correct even inside ESS/Emacs

     Changes/New Features in 5.1.23:
        * Minor more Makefile clean up.

     Changes/New Features in 5.1.22:
        * Besides info documentation, PDF and HTML documentation are
          also provided (instead of built using "make") and available
          on the web as well; see ESS web page
          (http://ess.r-project.org/) and StatLib
          (http://lib.stat.cmu.edu/general/ESS/doc)

        * Now that info documentation is available, the README.* files
          are no longer supported.  However, they are still distributed
          for what it's worth.

        * ESS is now an XEmacs package!  See XEmacs Installation HOWTO
          (http://www.xemacs.org/Install/index.html) for details
          (specifically, items 10-15).

        * ESS[SAS]: more user-friendly enhancements for remote SAS
          batch jobs with Kermit file transfers (LOG and OUTPUT
          function key features now supported).  Multiple shells now
          supported so you can run SAS on different computers from
          different buffers by setting the buffer-local variable
          ess-sas-shell-buffer to unique buffer names.

        * Major re-vamping of Makefile/Makeconf.

     Changes/New Features in 5.1.21:
        * ESS[SAS]: info documentation now available!, see ESS->Help
          for SAS; `F12' opens GSASFILE nearest point for viewing
          either within emacs, when available, or via an external
          viewer; more syntax highlighting keywords; more enhancements
          for remote SAS batch jobs with Kermit; new framework for
          remote SAS interactive jobs, see ess-remote

        * ESS[S]: info documentation now available!, see ESS->Help for
          the S family

        * Makefile: tag now independent of rel; info files made by
          doc/Makefile and installed in new info sub-directory

     Changes/New Features in 5.1.20:
        * New `options()$STERM' in the S dialects (S, S-Plus, R).  The
          S program can determine the environment in which it is
          currently running.  ESS sets the option to `iESS' or `ddeESS'
          when it starts an S language process.  We recommend other
          specific values for S language processes that ESS does not
          start.

        * New `ess-mouse-me' function, assigned to S-mouse-3 by default.
          User may click on a word or region and then choose from the
          menu to display the item, or a summary, or a plot, etc.  This
          feature is still under development.

        * GNU Emacs 21.1 is now supported (fixed for S dialects, SAS &
          BUGS), (some from Stephen Eglen).

        * XEmacs 21.x is now supported (fixed w32-using-nt bug)

        * XEmacs on Win (NT) is better supported.

        * Workaround for bug in Sqpe+6 (S-PLUS 6 for Win).

        * should now work even when imenu is not available (for old
          XEmacsen).

        * ESS[SAS]: XEmacs-Imenu fix; `C-TAB' is globalized along with
          your function-key definitions, if specified; you can specify
          your SAS library definitions outside of autoexec.sas for
          ess-sas-data-view with SAS code placed in the variable
          ess-sas-data-view-libname, also the dataset name is defaulted
          to the nearest permanent dataset to point; Speedbar support
          now works for permanent datasets, please ignore first./last.;
          new font-locking is now the default with more improvements
          for font-locking PROCs, macro statements, * ; and %* ;
          comments; you can toggle sas-log-mode with `F10' which will
          font-lock your .log (if it isn't too big); submit remote .sas
          files accessed with ange-ftp, EFS or Tramp (Kermit is
          experimental) by setting ess-sas-submit-method to 'sh;
          ess-sas-submit-command and ess-sas-submit-command-options are
          buffer-local so you can have local file variable sections at
          the end of your .sas files to request different executables
          or specify special options and the local file variables are
          re-read at submit instead of only at file open so that if you
          make a change it is picked up immediately;

        * ESS[BUGS]: font-lock with `in' fixed.

        * for STATA: font-lock bug fixed.

        * for Rd mode: `C-c C-v' and `switch-process' in menu.
          further, `C-c C-f' prefix (Rd-font) for inserting or
          surrounding a word by things such as \code{.},
          \code{\link{.}}, \emph{.} etc.

        * new functions (ess-directory-function) and
          (ess-narrow-to-defun) ess-directory <-> default-directory
          logic (Jeff Mincy).

        * Re-organized Makefile and fixed a few bugs.

     Changes/New Features in 5.1.19:
        * S+6 now supported (Tony Rossini (Unix) and Rich Heiberger
          (Windows))

        * New BUGS support through ESS[BUGS] mode (Rodney Sparapani)
          Templates assist you in writing .bug and .cmd code (.cmd and
          .log are replaced by .bmd and .bog to avoid emacs extension
          collisions).  Substitution" parameters facilitate "automagic"
          generation of data...in" and "init...in" filenames, "const
          N=" from your data file and "monitor()/stats()" commands.
          Activated by pressing `F12'.

        * Fixes for `ess-smart-underscore' SAS breakage (Rich Heiberger)

        * You can change between PC and Unix, local and global SAS
          function-key definitions interactively (Rich Heiberger)

        * `C-Submit' a highlighted region to SAS batch (Rodney
          Sparapani)

        * New and improved SAS syntax highlighting (Rodney Sparapani)
          To get the new functionality, set ess-sas-run-make-regexp to
          nil.  Also available in .log files via `F10'.

        * Open a permanent SAS dataset for viewing via `F9' (Rodney
          Sparapani) You must have the library defined in autoexec.sas
          for it to work.

        * User-friendly defaults for `sas-program',
          `ess-sas-batch-pre-command' and `ess-sas-batch-post-command'
          as well Customize support for these and other ESS[SAS]
          variables (Rodney Sparapani)

        * `ess-sas-suffix-2' now defaults to .dat via `F11' (Rodney
          Sparapani)

        * Emacs/XEmacs, Unix/Windows issues collectively handled in
          ess-emcs.el

        * defadvice solves problem of missing *ESS* (thanks to Jeff
          Mincy)

        * Improved manual a bit by including things that were only in
          `README'.

     Changes/New Features in 5.1.18:
        * New `ess-smart-underscore' function, now assigned to "_" by
          default.  Inserts `ess-S-assign' (customizable " <- "),
          unless inside string and comments where plain "_" is used
          instead. (MM)

        * Fixes for longstanding interactive SAS breakage (RMH)

     Changes/New Features in 5.1.17:
        * Documentation for Windows Installation (Rich Heiberger)

        * removal of ess-vars, finalization of customize support (in the
          sense that there is no more use of ess-vars, but that we need
          to fix ess-cust) (AJ Rossini)

        * Many small (and large) fixes/contributions (MMaechler)

        * addition of the "S-equal" variable and provide `M-x
          ess-add-MM-keys' a way to remap "_" to `ess-S-assign',
          typically " <- ", but customizable. (MMaechler)

     Changes/New Features in 5.1.16:
        * BUG FIXES

        * Better SAS support

     Changes/New Features in 5.1.15:
        * BUG FIXES

     Changes/New Features in 5.1.14:
        * Yet more fixes to SAS mode, (Rich Heiberger and Rodney
          Sparapani)

        * Customize support (for most Emacsen which support it)
          (AJRossini)

        * ARC and ViSta support out of the box, and fixes for XLispStat
          (AJRossini)

     Changes/New Features in 5.1.13:
        * Version numbering finally all depending on the ./VERSION file,
          thanks to Martin Maechler.

        * Yet more fixes to SAS mode, thanks to Rich Heiberger.

     Changes/New Features in 5.1.12:
        * Splus 5.1 stabilized, thanks to Martin Maechler, Bill
          Venables, Chuck Taylor, and others.

        * More fixes to SAS mode, thanks to Rodney Sparapani and Rich
          Heiberger.

     Changes/New Features in 5.1.11:
        * More fixes to Stata mode, thanks to Brendan Halpin
          (mailto:brendan@essex.ac.uk).

        * fixed bugs in ESS-elsewhere, thanks to many testers

        * README.SPLUS4WIN has DETAILED instructions for S-PLUS 2000,
          thanks to David Brahm (mailto:brahm@alum.mit.edu).

        * Fixes to SAS mode, thanks to Rodney Sparapani

     Changes/New Features in 5.1.10:
        * More fixes to Stata mode

        * primitive generic version of ESS-elsewhere

        * Small fixes to SAS/Stata.

     Changes/New Features in 5.1.9:
        * Stata mode works

        * Literate Data Analysis using Noweb works

     Changes/New Features in 5.1.8:
        * Bug fixes

        * R documentation mode defaults changed

     Changes/New Features in 5.1.2:
        * able to use inferior iESS mode to communicate directly with a
          running S-Plus 4.x process using the Microsoft DDE protocol.
          We use the familiar (from Unix ESS) `C-c C-n' and related key
          sequences to send lines from the S-mode file to the inferior
          S process.  We continue to edit S input files in ESS[S] mode
          and transcripts of previous S sessions in ESS Transcript
          mode.  All three modes know the S language, syntax, and
          indentation patterns and provide the syntactic highlighting
          that eases the programming tasks.


1.11 Reporting Bugs
===================

Please send bug reports, suggestions etc. to
<ESS-bugs@stat.math.ethz.ch>

   The easiest way to do this is within Emacs by typing

   `M-x ess-submit-bug-report'

   This also gives the maintainers valuable information about your
installation which may help us to identify or even fix the bug.

   If Emacs reports an error, backtraces can help us debug the problem.
Type "M-x set-variable RET debug-on-error RET t RET".  Then run the
command that causes the error and you should see a *Backtrace* buffer
containing debug information; send us that buffer.

   Note that comments, suggestions, words of praise and large cash
donations are also more than welcome.

1.12 Mailing Lists
==================

There is a mailing list for discussions and announcements relating to
ESS.  Join the list by sending an e-mail with "subscribe ess-help" (or
"help") in the body to <ess-help-request@stat.math.ethz.ch>;
contributions to the list may be mailed to
<ess-help@stat.math.ethz.ch>.  Rest assured, this is a fairly
low-volume mailing list.

   The purposes of the mailing list include

   *  helping users of ESS to get along with it.

   *  discussing aspects of using ESS on Emacs and XEmacs.

   *  suggestions for improvements.

   *  announcements of new releases of ESS.

   *  posting small patches to ESS.

1.13 Authors
============

   * A.J. Rossini (mailto:blindglobe@gmail.com)

   * Richard M. Heiberger (mailto:rmh@temple.edu)

   * Kurt Hornik (mailto:Kurt.Hornik@R-project.org)

   * Martin Maechler (mailto:maechler@stat.math.ethz.ch)

   * Rodney A. Sparapani (mailto:rsparapa@mcw.edu)

   * Stephen Eglen (mailto:stephen@gnu.org)