Sigmastat® 4.0
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A d v i s o r y S t a t i s t i c s f o r S c i e n t i s t S i g m a S t a t 4 . 0 s SigmaStat® 4.0 L et an e xp e rt g u ide your r e s e a r c h a n a l y s i s S i g m a S t a t s o f t w a r e h e lp s you ever y step of the way D e s i g n e d by Scientists, f o r S c i e n t i s t s S i g m a S t a t 4 . 0 D e s i g n e d by Scientists, f o r S c i e n t i s t s S i g m a S t a t 4 . 0 SigmaStat Helps You Analyze Data Confidently, Visualize Results Easily SigmaStat is an easy-to-use, wizard-based statistical software package designed to guide users through every step of the analysis and perform powerful statistical analysis without being a statistical expert. SigmaStat is tailored to the areas of life science and medical research, but can be a valuable product to scientists in many fields. With SigmaStat, you can be confident that you have analyzed your data correctly. And you save time, too! Because it takes you step by step through the analysis, SigmaStat ensures that you: • Use the proper statistical method to analyze your data • Avoid the risk of statistical error • Interpret the results correctly • Generate an appropriate display and a professional report Features that make analysis fast and easy You don't need to know which statistical test is right for your data. Simply open the SigmaStat Advisor Wizard and answer a few questions about your data and your research project. The Advisor will suggest the appropriate statistical test. Then SigmaStat runs the The SigmaStat Advisor Wizard guides you through the analysis of your data. test, checking your data against the test's underlying Designed by scientists, for scientists assumptions. If your data violates any of those assumptions, another test may be suggested that you SigmaStat is used by thousands of research scientists can run immediately. After you run the test, you receive worldwide. It can easily accommodate the vast amounts of a report in plain English, interpreting the results. Then, data those today`s research projects generate. And SigmaStat with a click of a mouse, you can visualize your data in includes the statistical tests and procedures most frequently one of several pre-selected formats. used in clinical and laboratory research. With SigmaStat, you can compare effects among groups, including before-and-after or repeated measures studies. You can also: • Conduct survival analysis • Analyze rates and proportions • Perform regression and correlation analyses • Use principle components to reduce data complexity • Calculate power and sample size SigmaStat automatically checks your data against the underlying Statistical tests - SigmaStat includes all the statistical assumptions for normality, equal variance, and multicollinearity. SigmaStat warns you of violations and suggests a more tests most frequently used to analyze scientific research. appropriate test when necessary. You can conduct regression analysis, and run analysis-of- variance analysis (ANOVA) or repeated measures against multiple groups. Learn more about SYSTAT Products at S i g m a S t a t 4 . 0 www.systat.com A d v i s o r y S t a t i s t i c s f o r S c i e n t i s t s S i g m a S t a t 4 . 0 SigmaStat's ease of use makes it an ideal solution for non-statisticians to conduct statistical analyses of research data. The output statements are obvious and make interpretation easy. Overall, SigmaStat is a user-friendly product that is instrumental to my research efforts and is ideal for anyone who requires more straightforward and intuitive statistical evaluation of their data. Dr. Robert Darmody - Professor of Pedology, Department of Natural Resources and Environmental Sciences, “University of Illinois SigmaStat Result Graphs - You can instantly visualize the You can also employ other types of parametric and results of your analysis by clicking on one of the preselected non-parametric tests, as your research requires. graph types suggested by And SigmaStat can accept raw or indexed data, SigmaStat. You don't need saving you from having to reformat your data. to reselect data or variables ” SigmaStat Worksheet - Designed to accommodate - SigmaStat uses the inputs high volumes of data, the worksheet contains up to 32 from your analysis. Then thousand columns and millions of rows. You can you can edit, save and automatically access data saved in Microsoft® distribute your graphs. Excel files or in other spreadsheet or database After your analysis is complete, you can quickly visualize your formats. You can navigate through the worksheet data by choosing from a set quickly and edit it efficiently, using keyboard of preselected "result graphs. commands found in familiar spreadsheet programs. SigmaStat Graph Wizard - Or select a data point or group of points in a graph Another way to visualize your data is and SigmaStat highlights the corresponding cell, with the SigmaStat Graph Wizard. column, or row in the worksheet to identify outliers You choose the graph type – point plot, box plot, bar or data entry errors. chart, histogram, scatterplot, step plot, and more. SigmaStat Report Editor – When you conduct an Then the Graph Wizard guides you through the process analysis with SigmaStat, you receive a detailed, of selecting your data and creating your graph. formatted report interpreting the results - not in statistical jargon, but in language you understand. You Rely on SigmaStat can print your report, incorporate it into other documents You owe it to yourself - and to your research. or export it in a variety of formats, including PDF and With SigmaStat, you'll have the expertise of a HTML. professional statistical consultant at your fingertips. This saves time and helps you avoid statistical errors. Plus, you can share your findings quickly and easily, not only with colleagues in your lab, but with others around the world. And SigmaStat 4.0 makes all of this easier than ever before! For more information about SigmaStat, call 1-800-797-7401 (toll-free within the U.S.) . or visit www.systat.com/products/SigmaStat/. SigmaStat provides a written report that interprets your analysis, in terms you can understand. D e s i g n e d by Scientists, f o r S c i e n t i s t s S i g m a S t a t 4 . 0 S i g m a S t a t 4 . 0 SigmaStat 4.0 Features BROWSER-STYLE • Regression • Regression Diagnostics • Test Results Graphs (cont’d) NOTEBOOK MANAGER - Linear and multiple linear - Multicollinearity, homoscedasticity, - Point plots • Can hold SigmaStat worksheets, - Polynomial, specific order or residual analysis - Point and column means Excel worksheets, reports, model comparisons for many - Cook's distance. Leverages, - Histogram of residuals documents and graph pages. orders covariance matrices (and more) - Normal probability plot • New dialog-bar-based notebook - Stepwise, forward and backward • Test-Specific Options - Scatterplot with regression and that has several states: docks, - Best subsets - Set alpha for power calculation confidence intervals resizable, hide-able, summary - Multiple logistic - Set significance level for - Box plots information mode, etc. - Deming omnibus test and multiple - 3-D residuals and 3-D scatterplots • Rearrange notebook items with - Nonlinear comparisons - Grouped bar charts drag-n-drop. • Principal Components - Execution options (and more) - Before-and-after plots • Direct-editing of notebook summary - Covariance or correlation matrix - Multiple comparison matrix information analysis MATHEMATICAL - Scatter correlation matrix DATA SELECTION - Multiple methods of component TRANSFORMS - Scree plot, component loadings plot, • Raw, indexed, and tabulated data selection • Parameter estimation functions for component scores plot nonlinear regression • Sample size, mean, standard • Rates and Proportions GRAPH FEATURES deviation or standard error - Chi-square analysis of • Analytic functions, statistical functions, data manipulation • Plot a range of rows DATA WORKSHEET contingency tables - McNemar test • Probability distribution functions, • Multiple "undo" feature • Up to 32 thousand columns by - Fisher's exact test functions to solve equations • Eight axis scaling options, millions of rows • Use single-value, column range, - Z-test including linear, log, • Adjust row height and column or worksheet blocks for input - Odds Ratio and Relative Risk probability, date/time widths • Random number generators • Power and Sample Size • Create axis titles and legends • Format cells and empty columns • Dummy variables to supplement automatically - t tests and proportions • Add row titles ANOVA analysis • Choose text fonts and control size • Longer text strings and variable - ANOVA and correlation • User-defined (and more) and style names - Chi-square • Change type, color and fill of lines, • Data linked to Exploratory graphs • Descriptive Statistics REPORTS and fill style • Multiple "undo" feature - Mean, median, standard deviation, • Export in PDF and HTML • Modify computation of error bars • Handles missing data standard error of mean • Multiple "undo" feature • Add Gradient fills, antialiasing, • Edit column titles interactively - Percentiles, sum of squares • Print preview color transparency • Promote text labels to column titles - Skewness, kurtosis • Cut and paste graphs • Use the Histogram Wizard to plot • Transpose rows/columns - Confidence interval for the • Save to text files histograms with options for • Sort, rank, index and stack data mean range • Option to "Explain Test Results" styles IMPORT/EXPORT DATA - Maximum and minimum values • Display assumptions, ANOVA tables, • Use