Known as the ‘Scientific Graphing Standard’, SigmaPlot 12 is the easy-to-use scientific graphing and
statistical data analysis software package for scientists and engineers who need to create exact, publicationquality
graphs that best communicates their research results for presentations, technical publications or the
web. With advanced curve fitting, a vector-based programming language, macro capability and over 50
frequently use statistical tests, SigmaPlot has the analytical features necessary to extract the important
information from your research data. Then with over 100 graph types and a user interface which allows
detailed manipulation of every graph object you can create the exact graph to present your results.
SigmaPlot 12 has advisory statistical routines and enhances SigmaPlot into a complete statistical analysis
and technical graphing suite. SigmaPlot’s award-winning interface and intuitive wizard technology guides
users step-by-step through the graph creation and data analysis process. More than 300,000 researchers
have used SigmaPlot because it provides the flexibility to create compelling graphs you simply can't get
from a basic spreadsheet package. Users love the ability to interactively modify any small detail of the final
graph to make it the perfect presentation of their data.
Weight variables may now be specified quite generally as functions of the parameters. Therefore these weights will change at each iteration. In special cases, this includes weighting by predicted values, weighting as a function of residuals (for robust regression) and weighting as a function of the parameters.
Parameter covariance matrix and parameter confidence intervals added to nonlinear regression reports.
Implicit function curve fitting gives the ability to compute predicted values that are defined implicitly by the fit model. >> More