SigmaStat helps you professionally analyze data and easily visualize results.

An easy-to-use, wizard based statistical software package designed to guide users through each step of analysis and perform powerful statistical analysis without becoming a statistical expert. SigmaStat is tailored for the fields of life sciences and medical research, but for scientists in many fields, it can become a valuable product.

summary

SigmaStat provides a wide range of powerful and easy-to-use statistical analyses, specifically designed to meet the needs of research scientists and engineers.

By using the features in the program, the system will guide you through the process of selecting appropriate tests to analyze data, running tests, and interpreting results in test reports.

For many tests, graphics can be used to summarize test results.

The editing function in the program allows you to customize the appearance of reports and graphics. Your final result may be distributed using a large number of file formats available for export.

Regression Wizard

• Use one of our 150 built-in fitting equations or user-defined fitting equations to solve nonlinear regression problems
• You can use various data formats to select raw data for regression from the worksheet, or you can choose from plots in the graph
• The default fitting library of this program includes models based on polynomials, rational functions, exponential growth and decay, sigmoid functions, ligand binding, waveform, logarithmic functions, probability distribution and density functions, piecewise linearity, etc
• The user-defined equation was created from the regression wizard using the "Edit Function" dialog box and saved to our default fitting library. They can choose to save to any notebook file. Double clicking on the formula item in the notebook will launch the regression wizard
• Fitting model equations using transformation language encoding can include definitions of constants, weight variables, linear equality and inequality constraints, as well as other variables
• The initial parameter values required by the algorithm can be specified as constants or defined using the automatic parameter estimation function in the transformation language
• The fitting equation can contain up to 500 parameters and up to 50 independent variables
• Weighted regression supports the definition of weights as constants or functions of regression parameters for each observation. The weight function allows users to apply reliable processes for parameter estimation to mitigate the impact of outliers. The examples are provided in the fitting library of the program and the installed example files
• You can use these options to create multiple types of results displayed in regression reports or worksheets.
• You can create a graph of the best fit equation with raw data for a model with two or three independent variables. Can add confidence zones
• Models can be created to solve other types of problems besides regular data fitting. Examples are included in the sample file, including global curve fitting, solving equations, quantile regression, and distribution fitting

System requirements

hardware

• 486 processor or higher
• 16 MB RAM is required (32 MB or more is recommended)
• 10MB hard drive space

system

Windows 10, 8. x, 7, Windows Vista, 95, 98, NT, and XP (32-bit)