Applications:

Insightful Announces EnvironmentalStats for S-PLUS 2.0

Insightful Corporation, a leading provider of enterprise software solutions for data analysis, announced EnvironmentalStats for S-PLUS 2.0, a major upgrade to its popular data analysis software for environmental monitoring and assessment. A new graphical interface makes it easy for new users to apply cutting-edge analytical techniques and powerful visualization tools to comply with stringent USEPA regulatory guidelines.

An add-on module to S-PLUS 6.0, EnvironmentalStats for S-PLUS 2.0 provides simple-to-use pull-down menus and powerful statistical methods for performing precise environmental data analysis. The software combines the essential statistical methods found in environmental literature and regulatory guidance documents with an extensive hypertext help system explaining how to effectively use these methods in one statistical package. Users learn new methods for environmental data analysis by reading industry-specific examples using convenient built-in data sets. The software enhances productivity by reducing the need to transfer analysis between programs or to refer to external documents during the analysis process.

"EnvironmentalStats for S-PLUS is a remarkable product tailored to EPA's DQO/DQA processes, providing environmental scientists and statisticians with all the tools they need for designing and analyzing environmental monitoring and assessment studies," said Michael Riggs Ph.D., senior environmental statistician at Research Triangle Institute. "The GUI makes analysis a pleasant trip of discovery for even the most 'statophobic' scientist. Invaluable tools for study design include easy-to-use GUI-based prospective power analysis functions and graphical functions for producing performance goal diagrams. Steven Millard's and N.K. Neerchal's companion text, 'Environmental Statistics with S-PLUS' provides an exhaustive treatment of statistical sampling and analysis issues that confront applied environmental statisticians and scientists."

"For more than 15 years, our company has been a leading supplier of cutting-edge data analysis solutions," said Shawn Javid, chairman, president and CEO of Insightful. "Insightful software, such as EnvironmentalStats for S-PLUS, delivers a platform for rigorous statistical analysis which is key for scientific, engineering and business problem-solving. In each case, we help users find the patterns, trends and relationships in data, leading to faster, smarter decisions."

Key features of EnvironmentalStats for S-PLUS include:

• Easy-to-Use. Perform robust statistical analyses using an intuitive graphical user interface.
• Comprehensive Regulatory Information Included. Improve productivity by collecting and analyzing environmental monitoring data and compare it with federal and state Superfund, RCRA, CERCLA, and Subtitle D regulations within a single familiar environment.
• Probability Distributions. Model environmental data and assess risk using additional probability and quantiles and generate random numbers from these distributions.
• Goodness-Of-Fit Tests. Apply the standard tests for normality and plotting methods to determine how the hypothesized distribution fits the observed data. Perform tests including observed and fitted distributions, quantile-quantile plots, Shapiro-Wilk, Kolmogorov-Smirnov and more.
• Unique Hypothesis Tests. Detect trends and discover important patterns in environmental data using Chen's modified one-sided t-test for skewed distributions, Fisher's one-sample randomization (permutation) test for location and quantile test to detect a shift in the tail of one population relative to another, two-sample rank linear rank tests, test for serial correlation based on von Neumann rank test, nonparametric estimation and tests for seasonal trends.
• Sample Size and Power Calculations and Plots. Examine how changing a sample size affects study effectiveness.
• Built-in Datasets. Reference and access datasets from USEPA regulatory guidance documents to reproduce specific examples within EPA guidance documents.
• Extensive Hypertext Help System. Review leading statistical methods in environmental literature that describes relevant equations and links the information to the original reference. Read relevant abstracts and regulatory guidance documents or review a glossary of statistical and environmental terms for better understanding. Availability EnvironmentalStats for S-PLUS is available for S-PLUS Professional or S-PLUS Standard for Windows Version 6 or higher. The software is supported on Microsoft Windows 98, ME, 2000, NT or XP.

About Insightful

Insightful Corporation provides enterprises with scalable data analysis solutions that drive better decisions faster by revealing patterns, trends and relationships. The company is a leading supplier of software and services for statistical data mining, business analytics and information retrieval enabling clients to gain intelligence from data.

Insightful products include EnvironmentalStats For S-PLUS, S-PLUS, StatServer, S-PLUS Analytic Server, VisiMine and Insightful Miner. These products add sophisticated data analysis and prediction into data warehousing and business intelligence initiatives. Insightful consulting services provide specialized expertise and proven processes for the design, development and deployment of customized analytical solutions. The company has been delivering data analysis solutions for over a decade to thousands of companies in financial services, pharmaceuticals, biotechnology, telecommunications, manufacturing, plus government and research institutions.

Headquartered in Seattle, Insightful has offices in New York City, North Carolina, France, Germany, Switzerland, and the United Kingdom with distributors around the world. For more information, visit www.insightful.com.

Contact Insightful Corporation, Judy McOstrich, 206-283-8802 x356, jmcostrich@insightful.com.