SigmaPlot is a commercial software package primarily used for data analysis and publication-quality visualization. Data can be input directly into a table or imported from basic ascii or Microsoft Excel files. Data summarization (e.g., mean, sum) and analysis tools (e.g., parametric and non-parametric statistics, regression, and correlation) operate on the data at a click of the mouse. Graphs or charts in 2-D or 3-D (e.g., line, bar, and pie charts, histograms, heat maps, surfaces) are created via a wizard. Batches of files can be analyzed and graphed automatically. SigmaPlot can also create default or user-defined reports. Specialized functionality of SigmaPlot includes instrument calibration, medical test analysis, and molecular biology tools.