curve Math and Scientific Tools

DataFit is a tool used to perform nonlinear regression (curve fitting), statistical analysis & data plotting. Fit equations with up to 100 parameters to data with up to 20 independent variables. Define your own equations or choose from over 600 pre-defined equations. Results include customizable 2D/3D plots, as well as detailed fit information. Export code in BASIC or C to use an equation in a user written program. Easy to learn and use.

Tags: curve, plotting, nonlinear, parameter, estimation, regression, statistics, math, science

The Unscrambler® helps you discover patterns and relationships in your data that traditional statistical methods and visual inspection cannot reveal. The Unscrambler`s Multivariate Curve Resolution (MCR), Derivatives, Principal Components Analysis (PCA), PLSR Analysis, and Experimental Design capabilities are unparalleled. Readers of Scientific Computing cited it as one of the Top Five products in terms of ease of use and visualization.

Tags: statistics, statistical, chemometrics, spectroscopy, spc, regression analysis, multivariate curve resolution, operations management, statistical process control, plsr

NLREG performs nonlinear regression and curve fitting. NLREG fits a mathematical function whose form you specify to a set of data values. Virtually any type of function can be fitted. NLREG includes a programming language similar to C that you use for describing the function to be fitted. Two dimensional line and three dimensional surface plots can be generated.

Tags: nonlinear regression, regression, modeling, surface fitting