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新版本 SYSTAT v13 有選購的 小樣本檢定功能 此功能是由知名的 Cytel's Exact Tests所出版的可與SYSTAT V13完全整合 而V13內建的新增功能有 ARCH & GARCH Models in Time Series Best Subsets Regression Confirmatory Factor Analysis Environment Variables in Best Statistics Polynomial Regression Enhancements to existing methods such as ANOVA, Bootstrapping, Crosstabulation, Fitting Distributions, Hypothesis Testing and more! Logistic RegressionSYSTAT 13 offers more intuitive ways of analyzing binary, multinomial, conditional, and discrete choice models. Specifically: Simplified and easy user interface and command line structure to analyze binary, multinomial, conditional, and discrete choice models separately. Option to specify the reference level for the binary and multinomial response models. Simpler form of input data to analyze matched sample case-control studies with one case and any number of controls per set. For Discrete choice models, SYSTAT 13 provides two data layouts: ‘Choice set’ and ‘By choice’ to model an individual’s choices in response to the characteristics of the choices. Nonparametric TestsUpdates in Nonparametric tests include: Jonckeere-Terpstra test as an alternative to Mann-Whitney test: The test is used when the treatments are ordered in terms of the response. This test is based on the sum of the k(k-1)/2 Mann-Whitney counts (for k treatments). Fligner-Wolfe test as an alternative to Mann-Whitney test: The test is used when one of the treatments acts as a control, to test equality of response to control vis-à-vis all other treatments, with a one-sided alternative. This is a Mann-Whitney test with two groups when the control is one group and all other treatments together form another. Post hoc (multiple comparisons) tests of Dwass-Steel-Critchlow-Fligner and of Conover-Inman which can be used as a follow-up when a Kruskal-Wallis test shows significance. A multiple comparison test due to Conover as a follow-up of Friedman test showing significance.
SYSTAT 13 Reviewed in Scientific Computing
by SYSTAT_Scott 12. 十一月 2010 10:45
Scientific Computing, the leading information technology publication for the sciences, has just published a review of SYSTAT 13. The full review can be seen here:
http://www.scientificcomputing.com/articles-DA-SYSTAT-13-110310.aspx
The author, Dr. John Wass, writes in part:
Despite the power and depth in this version, the most impressive feature is the inherent simplicity. In the early versions the novice could easily get frustrated in deciphering what the dialog box was really asking for and feeding it the proper data types. This is to say nothing about approaching the level of sophistication required to fully understand the depth of the statistical results presented. Now everything seems so intuitive that as with many programs, the learning curve is tilted in favor of the novice (though it still requires some statistical understanding on the part of the analyst!).
While many programs containing the newer simulation and data mining software (SYSTAT 13 contains a highly efficient Classification & Regression Tree algorithm) come with astronomical price tags, this software is still quite reasonable. Interested readers are encouraged to download the 30-day trial, and the many intuitive operations should delight the novice.
Commenting on behalf of Systat Software, Marketing Manager Scott Fenstermaker said, “We would like to thank Scientific Computing for deciding to review SYSTAT 13. We would also like to thank Dr. John Wass for the time and effort that went into this very thorough review.”
Mr. Fenstermaker added, “We believe that SYSTAT 13 offers tremendous benefit to the readers of Scientific Computing. The Systat team is committed to offering scientists and researchers a cost-effective, reliable and hassle-free statistical software package.”
