Least Squares Curve
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Motofit v.4
Motofit co-refines Neutron and X-ray reflectometry data, using the Abeles matrix / Parratt recursion and least squares fitting (Genetic algorithm or Levenberg Marquardt). It works in the IGOR Pro environment (TM Wavemetrics).
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Tidal Analysis Program in PYthon v.0.9.0
Tidal Analysis Program in PYthon (TAPPY) uses the least squares optimization function from scipy to perform a harmonic analysis (calculate amplitude and phases of a set of sine waves) of a hourly time series of water level values.
Nonlinear regression - CurveFitter v.4.5.61
This process is also called curve fitting.
Fit thousands of data into your equations in seconds:
CurveFitter gives scientists, researchers and engineers the power to find the ideal model for even the most complex data, including equations ...
LAB Fit Curve Fitting Software v.7. 2. 1938
At LABFit program you are able to:
1) Treat similar data (grouped and ungrouped dataset, one or two samples);
2) Treat non-similar data;
3) Determine propagated error (error propagation up to eight independent variables);
4) Plot 2D and 3D graph (normal, parametric, imported dataset, contour of maps);
5) Execute math calculations (system of linear equations, roots of function, non-linear equation, ordinary differential equation - ODE up to fifth order, system of differential equations - up to five first order ODE, calculator, etc);
6) Extract data (x;y) from a 2D graph (digitizing);
7) Curve Fit (nonlinear regression ...
FindGraph v.2.48
FindGraph is a comprehensive graphing, curve fitting, and digitizing tool. FindGraph offers 12 generic fits, including linear regression, logistic functions, fourier approximation, rationals, neural networks, B-splines and parametric curves least squares ...
DataFit v.9.0.59
DataFit is a science and engineering tool that simplifies the tasks of data plotting, regression analysis (curve fitting) and statistical analysis. What sets DataFit apart from similar curve fitting and regression programs is its ease of use. With the ...
GraphSight v.2.0.1
GraphSight v 2 is a software for math graphing solutions that has curve fitting capabilities. GraphSight 2 is perfect for high school and college math students. This utility is feature rich and comprehensive. It plots 2D graphs with comfortable navigation, ...
Fityk v.0.9.8
Fityk is user friendly, open source software for nonlinear curve fitting and data analysis. It is primarily used by scientists to analyze data from experiments (powder diffraction, chromatography, photoluminescence and infrared and Raman spectroscopy), ...
DataFitX v.2.0
DataFitX is a COM component (in-process ActiveX DLL) which allows you to add a powerful nonlinear regression (curve fitting) engine to your software with just a few simple lines of code. DataFitX is developed using COM, so it can be used in any environment ...
TriLookup v.2 2
Includes functions to fit polynomial curves through a set of X-Y data points and return a table of polynomial curve coefficients, as well as, determine the best fit polynomial curve.
In case of an error, TriLookup functions can either return ...
TriLookup Mac v.2 2
Includes functions to fit polynomial curves through a set of X-Y data points and return a table of polynomial curve coefficients, as well as, determine the best fit polynomial curve.
In case of an error, TriLookup functions can either return ...
GraphSight Junior v.1.0
GraphSight Junior is an easy to use freeware handy 2D math-graphing program. It was originally designed to help students and teachers satisfy their day-after-day math plotting needs. It makes it easy to plot and explore common Y(X) = F(X) Cartesian graphs, ...
Lhsol v.2.0.1
Compartmental models are transformed into general linear least squares functions, which are solved using Lawson-Hanson non-negative least squares (NNLS) algorithm.
Linear parameters are always >=0, but compartmental model parameters may get negative ...
Fitdelay v.2.0.3
(2): The plasma/blood curve is shifted -60 - +60 sec, and a two-tissue compartment model (with parameters K1, k2, k3, k4 and Vb) in multilinear form (3) is fitted to the shifted TAC and each regional tissue TAC, with the nonnegative least squares method ...