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.

Click to View Larger Image

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.

Click to View Larger Image

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.

Click to view larger image

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.

Click to view larger image

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.

Click to view larger image

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.

Click to view larger image

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