Search Results for "curve fit"
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Showing 15 open source projects for "curve fit"
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Eleana
Program for the analysis of spectroscopic data, in particular EPR(ESR)
...Some of the basic functions include: baseline corrections, filtering, spectral clipping, integration / differentiation, pseudomodulation, filtering, etc. More advanced functions are: Forward / Inverse Fourier Transforms, Hilbert Transforms, Nonlinear Curve Fit, Global Analysis Fit of Multiple Curves, and many other. It is also possible to create your own plugins extending Eleana's functionality. -
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NumeRe
Framework for numerical computations, data analysis and visualisation
...Keep simple things simple: You want to plot a sine function? Just enter 'plot sin(x)'. You want to load some data? Enter 'load "path/to/your/file"' or drag the file into the terminal. You need to fit a function to the data? Enter 'fit data() -with=YOURFUNCTION(x)' Need assistance? Enter 'help topic' into the terminal or simply press [F1]. Find us on Discord: https://discord.gg/s5tSjwU Follow us on Mastodon: https://fosstodon.org/@numeredevs Visit our page: https://www.numere.org Buy us a coffee: https://ko-fi.com/numere We've moved to GitHub: https://github.com/numere-org">
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AlphaPlot
Interactive scientific graphing and data analysis software.
Alpha Plot can generate different types of 2D and 3D plots (such as line, scatter, bar, pie, and surface plots) from data that is either imported from ASCII files, entered by hand, or calculated using formulas. The data is held in spreadsheets which are referred to as tables with column-based data (typically X and Y values for 2D plots) or matrices (for 3D plots). The spreadsheets as well as graphs and note windows are gathered in a project and can be organized using folders. The built-in... -
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QtiPlot is a user-friendly, platform independent data analysis and visualization application similar to the non-free Windows program Origin.
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TF Quant Finance
High-performance TensorFlow library for quantitative finance
TF Quant Finance is a high-performance library of quantitative finance components built on TensorFlow, aimed at research and production workloads. It implements pricing engines, risk measures, stochastic models, optimizers, and random number generators that are differentiable and vectorized for accelerators. Users can value options and fixed-income instruments, simulate paths, fit curves, and calibrate models while leveraging TensorFlow’s jit compilation and automatic differentiation. The... -
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lmfit - least squares fitting
Levenberg-Marquardt least squares minimization amd curve fitting.
A self-contained C library for Levenberg-Marquardt least-squares minimization and curve fitting. To minimize arbitrary user-provided functions, or to fit user-provided data. No need to provide derivatives. With application examples. -
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Dr Fit
Automated fitting of dose-response curves
Dr Fit enables to automatically fit a curve to your experimental dose-response data. The data, which should be saved in .xls files, is uploaded through the software which then automatically models it. The resulting curve can be saved in a high resolution figure or as a matlab figure. Responses/Effects can also be interpolated/extrapolated at various doses. -
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scichoplot
Discontinued. Look for http://sourceforge.net/projects/scienplot/
- Data plotting and analysis software for students and scientists. - 1D curve fit (user defined custom func.) - 1D plot: makers, curve, landscape, bar, etc. - 2D surface plot, and 3D height field and scatter plot (under developing) - Can use numpy and scipy special functions to generate and plot 1d and 2d data - Column by column plotting/calculation. - LaTex commands enclosed by $ symbols can be used for the labels in Graph - Accept txt(Text) and csv(Comma separated values) format data - Save, copy, print Graph - Save and open a Work/Project file - Use spread sheets to display data - TextPad to organize the results - Python shell for Python users: No need to install Python interpreter... -
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XYmath
XYmath is a GUI that creates, documents and explores y=f(x) curve fits
XYmath will find the "best" curve fit using either minimum percent error or minimum total error. It can search through common equations, an exhaustive search through thousands of equations, splines, smoothed splines, or non-linear equations input by the user. After fitting, XYmath will find roots, minima, maxima, derivatives or integrals of the curve. It will generate source code that documents and evaluates the fit in python, FORTRAN or EXCEL. ... -
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Clusterfit
Show stellar evolution and open clusters in a color-magnitude diagram
This program is centered on a graphical Hertzsprung-Russell or color-magnitude diagram (CMD). It can show animated evolutionary tracks of stars of different masses, for a single star or a population of stars. In addition, it can show the CMD of a large number of existing open clusters, based on scientific survey data, and overlay isochrones (the curve in a CMD from stars born at the same time) to determine the age, distance and interstellar reddening of the cluster. Determining these... -
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TightFit is a "fit tool" for Eve Online(r), and can help you test and check ships and modules without spending all the ISK. The main design goals are: speed, and shallow learning curve.
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...Thermocouples generate a voltage at a given temperature. The relationship isn't simple. There are published tables, but the format can be awkward. This project supplies tools to find, parse, plot, and curve-fit thermocouple data.
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Least-Squares Bezier Fit
Small program for fitting a Bezier curve to a sequence of points
This program uses a least-squares approach, similar to linear regression, for fitting a Bezier curve to a sequence of Cartesian coordinate points. This project requires the UJMP package which is freely available online here https://sourceforge.net/projects/ujmp/. For an explanation of the math behind this code please check out my blog post: http://jimherold.com/2012/04/20/least-squares-bezier-fit/ -
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A set of self-contained C++ routines to sample and resolve functions properly for plotting, as well as curve fitting routines that fit spectral features. This is mainly useful for scientific simulations where spectral data need to be fully resolved.
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