bob@statsci.com (Robert Treder) (06/08/90)
ANNOUNCING VERSION 1.0 OF S-PLUS FOR DOS ======================================== Statistical Sciences, Inc. (STATSCI), based in Seattle, Washington, has just released Version 1.0 of S-PLUS for DOS. S-PLUS is a powerful system and an easily extensible interactive language used for graphical data analysis, statistics and mathematical computing. GENERAL DESCRIPTION OF S-PLUS for DOS ===================================== S-PLUS is a fully supported superset of New S. New S was developed by Becker, Chambers and Wilks at AT&T Bell Laboratories in an ongoing research effort that now spans a decade. Complete access to DOS tools is available from within S-PLUS. S-PLUS provides over 500 functions which may be easily extended by defining new functions written in the S-PLUS language and/or by incorporating user-supplied Fortran or C programs. STATSCI's ENHANCEMENTS AND EXTENSIONS ===================================== CLASSICAL INFERENCE -------------------- S-PLUS now contains for the first time a basic set of classical methods for estimation and testing. These methods are available in an interactive and graphical display form which makes S-PLUS much more widely useful for both teaching and research. The methods contained in Version 1.0 include: t-test (paired and unpaired One-way ANOVA with and without covariate equal and unequal) Kruskal-Wallis test Wilcoxon signed rank test Generalized Cochran Q test Binomial test for p Mantel-Haenszel test for association Chisquare test for r X s Stuart-Maxwell test for association Fisher's exact test for 2 X 2 t-test for zero correlation McNemar's Test for symmetry Kendall's Tau and test for zero correlation Bivariate normality test Spearman's rank correlation and test Univariate normality test for zero correlation Additionally, the binomial, hypergeometric and Wilcoxon distributions have been added to the list of distributions represented in S-PLUS. MODERN REGRESSION TECHNIQUES ---------------------------- Regression model linearization (ACE) Additivity and Variance Stabilization for regression (AVAS) Projection Pursuit Regression Least Median of Squared Residuals (LMS) Regression Kernel Smoothers, Friedman and Stuetzle's "Super Smoother" TIME SERIES ----------- Univariate ARIMA models Multivariate AR models Robust Fits for univariate AR models Complex Demodulation Spectral Analysis General specification of filters and smoothers Robust filters and smoothers ROBUST METHODS -------------- Bisquare estimates of location and scale LMS 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 GENERALIZED LINEAR MODELS (GLIM) -------------------------------- This is a general implementation of McCullagh and Nelder's Generalized Linear Models including gaussian, binomial, poisson, gamma, and inverse gaussian error structures and identity, log, logit, probit, square root, inverse and loglog link functions. Model fitting includes offset and model sequence specification. SURVIVAL ANALYSIS ----------------- Survival Curves including Kaplan-Meier and Fleming-Harrington Cox Proportional Hazards Models G-rho family of tests for differences between survival curves NEW "HELP" FILES ---------------- Revised "help" files format with additional information and references, a permuted index for all the functions, optional pagers for scrolling, and optional pop-up help windows. ========================================================================= SUPPORT ======= Software and documentation updates S-PLUS hot-line phone support Statistical consulting On-site training courses SYSTEM REQUIREMENTS =================== 386 IBM-PC, PS/2 or compatible with 387 math chip 2 MB RAM (4 MB recommended) Hard Drive (recommend 10-15 MB available) PC-DOS 3.1 or above TECHNICAL NEWSLETTER ==================== An S/S-PLUS technical newsletter series will commence in May. Anyone wishing to receive this may do so by sending their surface mail address to STATSCI's electronic or surface mail address provided below. DISCOUNTS ========= Special introductory discounts are now available until July 31, 1990. Additional discounts are available for educational organizations. FOR MORE INFORMATION ==================== Email: mktg@statsci.com or uunet!statsci!mktg. Surface: STATSCI P.O. Box 85625 Phone: (206)322-8707 Seattle, WA 98145-1625 USA Fax: (206)322-0738