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For richer analysis and easier report creation and graphing
Expert guidance in analyzing your research
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!
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 |
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.
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.
Software statistica
Programma statistica
Grafico statistico
Analisi dati
Analisi statistica
Grafica scientifica
Graphing software
Data analysis
Mathematical calculation
Intervallo di confidenza
T Test
Regressione
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 |
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 |
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 |
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