Expert guidance in analyzing your research
SigmaStat's Advisor Wizard asks a series of simple questions and recommends the best test to run.
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
Be sure you've analyzed your data correctly. And save time, too!
SigmaStat features make analysis fast and easy
The Advisor Wizard guides you in correctly analyzing your research findings. It:
Asks a few basic questions about your research
Suggests the appropriate statistical test
If your data violates the recommended test's underlying assumptions, SigmaStat warns you of this, and suggests a more appropriate test.
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Then SigmaStat:
Checks your data against the test's underlying assumptions
Suggests another test, if your data violates any of original test's assumptions
Provides a report interpreting the results, in terms you can understand
SigmaStat Report Editor
You can navigate through this report, and then edit and print it just as you do any document created with word processing software.
The SigmaStat report helps you interpret results.
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SigmaStat Report Graphs
Instantly visualize the results of your analysis by clicking on one of the pre-selected graphs types suggested by SigmaStat.
SigmaStat Graph Wizard
Create graphs in a variety of formats, without reformatting your data. Then customize them, using SigmaPlot editing tools. Create:
Point plots
Box plots
Bar charts and histograms
Scatterplots
Step plots
Survival curves
...and more
Access to SigmaPlot®
Share files between SigmaStat and SigmaPlot, the leading software application for scientific graphing. (Requires SigmaPlot 8.0.2)
Change details of your graphs using SigmaPlot's editing tools, including the Graph Properties dialog, tool palettes and text toolbar
Avoid having multiple files with the same data
Designed by scientists, for scientists
SigmaStat is used by thousands of research scientists worldwide to:
Compare effects among groups, including before-and-after or repeated measures studies
Conduct survival and reliability analyses
Analyze rates and proportions
Perform regression and correlation analyses
Calculate power and sample size
Statistical tests
SigmaStat includes all the statistical tests most frequently used to analyze scientific research.
Graphs
Exploratory Graphs
Step plots*
Scatter Plots
Column Means with Error Bars
Raw Residuals
Standardized Residuals
Multiple Line Plots
Bar Charts with Error Bars
Pie Charts
Histograms
Point Plots
Point and Column Means
Box Plots
Test Result Graphs
Raw Residuals (scatter)
Standardized Residuals (bar)
Column Means (bar and scatter plots)
Bar Charts with Error Bars
Point Plots
Point and Column Means
Histogram of Residuals
Normal Probability Plot
Scatter Plot with Regression and Confidence Intervals
Box Plots
3D Residuals
3D Scatter Plots
Grouped Bar Charts
Before and After Plots
Multiple Comparison Matrix
Scatter Correlation Matrix
Graph Feature Options
Edit with SigmaPlot*
Plot a range of rows*
Multiple undo*
Change Fill and Line color, line type, fill style
Add text and control font, size style
Change symbol size and shape
Axis types: linear, log, probability
Error as error bars
Axis titles created automatically
Legends created automatically
Multi-level zooming
Statistics
Analysis of Variance
Independent and paired
t-tests
One, two and three-way ANOVA
One and two-way repeated measures ANOVA
Nonparametric Statistics
Mann-Whitney rank sum test
Wilcoxon signed rank test
Kruskal-Wallis ANOVA
Friedman RM ANOVA
Survival Analysis
Single group
LogRank
Gehan-Breslow
Survival Curve options: error bars, confidence intervals, censored or failure points, fraction or percentage scale*
Correlation
Spearman rank order
Pearson product moment
Regression
Linear and multiple linear; polynomial; stepwise; best subsets; nonlinear; multiple logistic
Rates and Proportions
Chi-square analysis of contingency tables
McNemar's test
Fischer's exact test
Power and Sample Size
t-tests; proportions; ANOVA; chi-square; correlation
Descriptive Statistics
Mean, standard deviation, standard error of mean, median, percentiles, sum of squares, skewness, kurtosis, confidence interval for the mean range, max. and min.values, normality, sample size, missing value content
Normality
Kolmogorov-Smirnov
Equal Variance
Levene median test
ANOVA Multiple Comparison Options
Holm-Sidak test*
Tukey
Duncan's Multiple Range
Fisher LSD
Student-Newmann-Keuls
Bonferroni t-test
Dunnett's test
Dunn's test
Regression Diagnostics
Multicollinearity, homoscedasticity, residuals
Cook's Distance and more
Test-Specific Options
Set alpha for power calculation
Set power for sample size calculation
Mathematical Transforms
Use "for" and "if...then...else" statements
Trigonometric, Numeric, Range, Accumulation
Random number generator, Precision Area and distance, User-defined and more
parameter determination functions using ape, dsinp, fwhm, inv, lowess, lowpass, sinp, x25, x50, x75, xatymax, xwtr*
For richer analysis and easier report creation and graphing, get SigmaStat 3.0
SigmaStat is the program research scientists turn to when they want to be expertly guided through the analysis of their data.
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New features in SigmaStat 3.0
Access to SigmaPlot
Survival analysis
New report page
New data worksheet
Graphing improvements
Support for Microsoft® Windows® 2000 and Windows XP
And more…
Access SigmaPlot from SigmaStat's Graph menu, and then use SigmaPlot's Page toolbar to edit multiple items simultaneously or to selectively edit individual bars, lines or points.
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Access to SigmaPlot
Now you can open your SigmaPlot files in SigmaStat to test additional hypotheses. Share files between the two programs to avoid the confusion of having multiple files with the same data. And use SigmaPlot's editing tools, such as the Graph Properties dialog, tool palettes and text toolbar, to change any detail of your graphs - all from within SigmaStat.
Open SigmaPlot files in SigmaStat 3.0
Open SigmaStat files in SigmaPlot (requires SigmaPlot 8.02)
Access SigmaPlot's toolbar editing palettes, text toolbar or Graph properties dialog to customize SigmaStat graphs (requires SigmaPlot 8.02)
Compare survival rates among groups, and then display survival curves the way you prefer. Add error bars or confidence intervals, display of censored or failure values, define the survival scale as percent or fraction, and differentiate with color.
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Survival analysis
Predicting survival or reliability rates is difficult when you don't know the final outcome for every subject. Now it's easier, because SigmaStat 3.0 includes the Kaplan-Meier (product limit) method to estimate the survival function of cases followed over time. You can compare survival rates among groups, using SigmaStat's robust multiple comparison tests. And display the results just as you like, thanks to a variety of survival curve options, including error bars and confidence intervals.
Use Kaplan-Meier (product limit) estimation method
Compare results for single or multiple groups
Perform multiple comparison tests, including Holm-Sidak
Analyze data in either raw format (one group per column) or indexed data (all groups in a single column)
Choose survival curve options: show error bars or confidence intervals, display censored values, define the survival scale as percent or fraction, and differentiate groups with color
New report page
Now you can navigate through your entire report document by using scroll bars or keyboard commands, just as you do in popular word processing programs. Share your data with colleagues over the Web or by e-mail, by using PDF and HTML export options. Copy graphs to your report and preview the report before printing.
Export reports to both PDF and HTML formats
Use familiar keystroke commands to move through a report and select text
Add decimal tabs and margin controls more easily with improved formatting ruler
Preview report before printing
Edit your report efficiently with new "multiple undo" option
Format cells to display integers and decimal values in the same worksheet. Add row titles, use long text strings for column headings or worksheet cells, adjust the row or column sizes. Select a point or group on your graph, such as an outlier, and the corresponding cell, column or row is highlighted in the worksheet.
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New data worksheet
The new SigmaStat worksheet contains 32 million rows and 32,000 columns, to keep pace with the increasing volume of data you collect. You can move to the end of columns or rows with the same keyboard commands that you use in familiar spreadsheet programs, allowing you to keep your hands on the keyboard when entering data. Format both columns and individual cells to display each type of data in an appropriate format, allowing you to use integers and decimal values in the same worksheet.
Load data into as many as 32 million rows and 32,000 columns
Use familiar keystroke commands to move through the worksheet and select cells
Format individual worksheet cells and columns
Adjust row and column sizes
Add row titles
Use longer text strings and variable names in row and column headings
Select a data point or group of points in a graph, and see the corresponding cell, column or row highlighted in the worksheet
Define a data point as text, so that it is excluded from further analysis, and check for the effect of outliers while keeping your data intact
Edit your worksheet efficiently with new "multiple undo" option
Graphing improvements
One of the chief benefits of SigmaStat is that it enables you to perform statistical analyses without rearranging your data. Now this is true of SigmaStat graphing, too. With the improved Graph Wizard, you can chose from multiple data format options or graph a selected portion of your data. By recalling previous graphing selections, the Graph Wizard enables you to efficiently create multiple graphs from the same worksheet simply by inputting the information that changes from one to the next.
Use the improved Graph Wizard to:
Create graphs from data in various formats - such as XY pair, single Y/X, multiple X/Y, and more
Select a range of rows from a column
Recall previous selections
Position objects precisely by using new grid lines and "snap-to" options
Hold graphs at a preferred viewing size, by setting a default zoom level
Insert graph legends automatically
Incorporate additional symbol types
Edit graphs efficiently with "multiple undo" option
Support for Microsoft Window® 2000 and Windows XP
SigmaStat 3.0 is compatible with the latest PC hardware and operating systems.
New multiple comparison test for ANOVA studies
SigmaStat 3.0 incorporates the Holm-Sidak multiple comparison test for ANOVA.
Additional mathematical transforms
To give you even greater flexibility in analyzing your data, SigmaStat 3.0 includes more than a dozen additional mathematical functions.
Additional data import options
The ability to import data saved in Microsoft Access or in SPSS databases saves you from the tedious clerical task of re-formatting this data.
Data Selection
Raw and indexed data
Sample size, mean std. dev., std. error of mean
Reports
Export in PDF and HTML*
Multiple undo*
Print preview*
Embedded graphs
Save to text files, Word Perfect and Microsoft Word
Optional date/time stamp
Formatting tool bar - cut, copy, paste, alignment
Graphical ruler to set tabs and margins
Set default font
Option to "Explain Test Results"
Display summary tables, power, confidence interval
Import/Export
MS Access .mdb*
SPSS .sav*
ASCII text files, Lotus 1-2-3, dBase, Quattro, Symphony, Excel, DIF and other versions of SigmaPlot, SigmaScan and SigmaStat
Data Worksheet
Multiple undo*
Adjust row height and column widths*
Longer text strings and variable names*
Add row titles*
Format cells and empty columns*
Data linked to graphs*
Handles missing data
Interactive column title editing
Promote text labels to column titles
32 million rows by 32,000 columns*
32-bit application
Sort, index, and stack data
Transpose rows/columns
Vary column widths
Cut, Paste, Copy, etc.
SigmaLink with SigmaPlot worksheet
