Systat 13


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Analyze more Complex Linear Models

SYSTAT 12 has extend the scope of analysis of linear models like Regression, Analysis of Variance and General Linear Models (GLM) to tackle correlated data, clustered data, dependent data and heteroscedastic data. Use SYSTAT's Mixed Model Analysis to analyze various types of linear mixed effects models like variance components models, hierarchical mixed models, and mixed regression. Obtain different types of estimates of fixed effects parameters and variance components, predictions of random effects, all with confidence intervals and hypothesis tests.


Extend your Analysis with Partial Least Squares and Robust Regression

Use Partial Least-Squares Regression when the data set includes a large number of predictor variables, greater even than the number of cases. SYSTAT provides two standard algorithms - NIPALS and SIMPLS. Obtain standard errors of the estimated regression coefficients by the Jackknife procedure. Validate the fitted regression by one of two types of cross-validation procedures, viz., leave-one-out and random exclusion.

When a standard multiple linear regression procedure shows up problems with your data set, use a suitable one of SYSTAT's Robust Regression procedures (LAD, LTS, LMS, S, M, Rank) to solve your problem.


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Develop, Improve and Optimize the Performance of a Process

Using data from a well-designed experiment, invoke Response Surface Optimization to work out the levels of input factors and process settings that will produce the best yield in terms of product characteristics. Estimate response surface parameters, carry out analysis of variance and tests of significance, compute optimum factor settings, produce contour and desirability plots, and carry out ridge analysis.


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Easily Detect Groupings in Data

SYSTAT's Cluster Analysis gives you a wide variety of distance and similarity matrices, clustering criteria, validation indices, and cutting and pruning methods to get a most satisfactory hierarchical classification or grouping from the data. Use new linkage methods which include uniform and kernel,


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Take Control of Your Charts and Graphs with a New Interactive Dialog

Use SYSTAT's wide range of scientific and technical graphs to present your analysis and customize them to suit your requirements. Use the new Interactive Dialog to change multiple aspects of your graphics using a single integrated dialog box.


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Present Visually Useful and Attractive Summary of Large Data

Use SYSTAT's Hexagonal Binning, a form of bivariate histogram, for an advanced version of scatterplot for large data sets. Hexagonal binning plots divide the screen on a hexagonal grid. The radius of the hexagons is the same throughout but its color depends on the range of the frequency of the x-y values.