From: Conrad_Geiger@NeXT.com (Conrad Geiger - Manager, International NeXT User Groups)
Newsgroups: biz.next.newprod
Subject: Announcing S+ (Statistical Package) for NeXT
Date: 5 Nov 92 21:56:30 GMT
Reply-To: user_groups@next.com

Statistical Sciences, Inc.
1700 Westlake Ave. N.  Suite 500
Seattle, WA 98109, USA
Tel: (800) 569-0123 or (206) 283-8802
Fax: (206) 283-8691
Email: mktg@statsci.com

 
 
                              S-PLUS VERSION 3.1 
                   FOR UNIX WORKSTATIONS AND COMPUTE SERVERS 

 Statistical Sciences, Inc. (StatSci), based in Seattle, Washington,
 is pleased to announce Version 3.1 of S-PLUS for UNIX Workstations 
 and servers. S-PLUS is an extensible, interactive language and 
 software application used for graphical data analysis, statistics 
 and mathematical computing.  It also provides both a data analysis 
 environment and an object-oriented language for development of 
 quantitative applications.
 
 GENERAL DESCRIPTION OF S-PLUS Version 3.1
 =========================================
 S-PLUS is a fully supported superset of the April, 1992 release 
 of The S Language from AT&T Bell Labs. S provides hundreds of data 
 analysis functions which are embodied in their own C-like language. 
 This language-basis allows greater flexibility for easy 
 modification or extension of existing functions and also allows 
 the user to define new functions in the language and/or to 
 incorporate their own Fortran or C programs. 
 
 StatSci adds a number of statistical and graphical functions, 
 provides service and support services, sells S-PLUS in binary 
 format for specific workstations (S can only be purchased as 
 unsupported source code), and provides complete documentation for 
 S-PLUS.
 
 PARTIAL LIST OF IMPORTANT S-PLUS FEATURES
 =========================================
 
   EDA AND PRESENTATION GRAPHICS
   -----------------------------
   S-PLUS provides enhanced window system interfaces for X11, and 
   SunView. Under X11, the user can choose an OPEN LOOK, Motif, or 
   Athena style.  

   The S-PLUS plot windows provide a palette of mouse-driven 
   selections including point and click for instant laser printer 
   output (PostScript and LaserJet printers), plot orientation, 
   text point size, color selection, and copy creation.  Multiple 
   plots can be placed on one page or screen, or plots can be 
   overlayed.
 
   HIGH INTERACTION GRAPHICS
   -------------------------
   High-interaction graphics are provided in the form of pairwise 
   scatter plots, 3-D point cloud rotation, marginal histograms 
   and scrollable case listings, all with linked brushing.
 
   GREY-SCALE AND COLOR IMAGING
   ----------------------------
   A function is included for creating grey-scale or color image 
   plots.
 
   STATISTICAL MODELING LANGUAGE
   ----------------------------
   S-PLUS comes with a modern statistical modeling language which 
   provides a common syntax for describing and fitting a wide 
   variety of classical and modern, robust models.  Built-in models 
   include:
 
     * Linear Models
     * ANOVA Models, balanced and unbalanced
     * Nonlinear Models 
     * Generalized Linear Models
     * Generalized Additive Models
     * Local Regression Models (loess)
     * Tree-based Regression Models
 
   CLASSICAL INFERENCE 
   -------------------
   S-PLUS now contains a basic set of classical methods for 
   estimation and testing. The methods contained in Version 3.1 
   include:  
 
    Procedure:                            Comments
    ----------                  -----------------------------------
   t-test                     one-, two-, and paired-samples
                                   Welch's test for two samples
   correlation tests          Pearson's,Spearman's rho,Kendall's tau
   Wilcoxon tests             one-, two-, and paired-samples
   Kruskal-Wallis test
   Friedman test
   tests of proportions       exact and chi-square approximation 
   contingency table tests    Fisher's exact & chi-square approx.
   Mantel-Haenszel test
   McNemar test for symmetry
 
   Additionally, several discrete distributions including the 
   binomial, hypergeometric and Wilcoxon distributions have been 
   added to S-PLUS.    
 
   ANALYSIS OF VARIANCE 
   --------------------
   Fixed Effects
   Random Effects
   Factorial Models
   Nested Models
   Graphical Procedures:
      Location plots for each level of each factor
      Box plots for each level of a factor
      Interaction plots
      Half-normal probability plots of effects
 
   DESIGN OF EXPERIMENTS
   ---------------------
   Full and Fractional Factorial
   Orthogonal Array 
  
   EXPLORATORY REGRESSION 
   ----------------------
   Stepwise Multiple Regression
   All Possible Subsets Regression
   Generalized Additive Models
   Regression Model Linearization (ACE)
   Additivity and Variance Stabilization for regression (AVAS)
   Projection Pursuit Regression
 
   SCATTERPLOT SMOOTHERS
   ---------------------
   Kernel Smoothers 
   Friedman and Stuetzle's "Super Smoother" 
   Robust Locally Weighted Regression Smoother (Lowess)
 
   TIME SERIES
   -----------
   Univariate ARIMA models
   Multivariate AR models 
   Robust Fits for univariate AR models
   Fractionally-Differenced ARIMA Modeling
   Complex Demodulation
   Spectral Analysis
   General specification of filters and smoothers
   Robust filters and smoothers
 
   ROBUST METHODS
   --------------
   Bisquare estimates of location and scale  
   M-Estimate Regression
   Minimum Absolute Residual Regression 
   Least Median of Squared Residuals (LMS) Regression
   Least Trimmed Squares Regression
   Generalized M-estimates of AR parameters in time series 
   Robust estimates of location and scale in time series   
   Robust filters and smoothers for time series
 
   SURVIVAL ANALYSIS
   -----------------
   Survival Curves including Kaplan-Meier and Fleming-Harrington
   Cox Proportional Hazards Models 
   Anderson-Gill modification to the Cox Model for time-dependent 
   covariates
   G-rho family of tests for differences between survival curves
 
   MULTIVARIATE METHODS
   --------------------
   Linear Discriminant Analysis
   Cluster Analysis -- Hierarchical and k-means
   Model-based Hierarchical Clustering and Classification
   Principal Components Analysis
   Canonical Correlation
   Multidimensional Scaling
 
   EXTENSIBILITY
   -------------
   Object-Oriented Programming Language
   Interface to UNIX
   Interfaces to Fortran and C
   Static Loading of Fortran or C Code
   Dynamic Loading of Fortran or C Code
 
   INTERACTIVE HELP SYSTEM
   -----------------------
   S-PLUS comes with a point-and-click help system which allows the 
   user to scroll through a list of topics to easily identify the 
   specific S-PLUS functions for which assistance is needed.  
 
   INTERACTIVE DATA EDITOR
   -----------------------
   S-PLUS comes with a built-in spreadsheet-like data editor (for 
   X11 based systems only).  It allows you to put a data matrix 
   in a row-column structure, and to navigate the structure and 
   view and edit data values.
 
 
 PARTIAL LIST OF FEATURES NEW TO S-PLUS 3.1    
 ==========================================
 
   NEW FUNCTIONS FOR MATHEMATICAL COMPUTATION
   ------------------------------------------
   Many new functions for mathematical computing have been added 
   to S-PLUS 3.1. Included are functions for integration, 
   optimization, finding roots, multivariate minimization with 
   bounds, nonlinear least squares with bounds, and more. Version 
   3.1 also includes support for complex numerical linear algebra.
 
   QUALITY CONTROL CHARTING AND FUNCTIONS
   --------------------------------------
   S-PLUS version 3.1 implements both Shewhart and cusum charts for
   monitoring continuous and discrete processed.  
          
   IMPROVEMENTS IN POSTSCRIPT SUPPORT
   ----------------------------------
   A new device, called "postscript", has been created for producing
   postscript output. The new "postscript" includes all of the
   capabilities of the old "postscript" and "pscript" device drivers,
   plus some additional new features. The new features provide the 
   user with greater control over color, fonts and international 
   character sets.
 
   SUPERIOR SPEED PERFORMANCE AND MEMORY UTILIZATION
   -------------------------------------------------
   Improvements resulting in both faster execution speeds, and less 
   use of memory are included in S-PLUS 3.1. Initial tests indicate 
   that the new software consumes significantly less memory and 
   less execution time. Users can expect improvements when using 
   "for" loops, working with large data sets, or performing 
   simulations.
 
   COLOR OUTPUT OF THE "IMAGE" GRAPHIC
   -----------------------------------
   The "image" graphic can now be produced in color on a postscript
   printer. Version 3.1 provides the user with control over the 
   color map much like when desplaying the graphic with on screen 
   X11 based devices. Additional documentation about how to set up 
   and select color maps for output is included.
 
====================================================================
 
 UNIX PLATFORM OFFERINGS
 =======================
 Sun4/SPARC (SunOS 4.x, Solaris 1.x)  
 Silicon Graphics IRIS-4D, Indigo
 HP9000/3xx, 4xx, 7xx, 8xx (HP-UX 8.x or higher)
 DEC RISC (Ultrix)                
 NeXT (requires X11 for Graphics)
 IBM RS-6000 (AIX 3.2)
 
 (PC version also available; inquire for information)
 
 SUPPORT
 =======
 Software and documentation updates
 S-PLUS hot-line phone support
 Statistical consulting 
 Training courses in Seattle or on-site
 
 TECHNICAL NEWSLETTER
 ====================
 The S-PRESS, an S/S-PLUS technical newsletter series commenced 
 in June '90. Anyone wishing to receive the S-PRESS may do so 
 by sending their surface mail address to StatSci's electronic or 
 surface mail address provided below.
 
 REBATE PROGRAM
 ==============
 StatSci offers a rebate program for users of New S who wish to 
 convert to S-PLUS.
 
 DISCOUNTS 
 =========
 Educational and non-profit discounts, academic site licenses, and 
 volume purchase discounts are available.
 
 FOR MORE INFORMATION
 ====================
 Email:   mktg@statsci.com
 
 Surface: 
  StatSci                              
  1700 Westlake Ave N            Phone: (800)569-0123/(206) 283-8802    
  Seattle, WA  98109l USA        Fax:   (206)283-8691 
 
 
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