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Least-Squares Minimization with Bounds and Constraints

A library for least-squares minimization and data fitting in Python.  Built on top of scipy.optimize, lmfit provides a Parameter object which can be set as fixed or free, can have upper and/or lower bounds, or can be written in terms of algebraic constraints of other Parameters.  The user writes a function to be minimized as a function of these Parameters, and the scipy.optimize methods are used to find the optimal values for the Parameters.  The Levenberg-Marquardt (leastsq) is the default minimization algorithm, and provides estimated standard errors and correlations between varied Parameters.  Other minimization methods, including Nelder-Mead's downhill simplex, Powell's method, BFGS, Sequential Least Squares, and others are also supported.  Bounds and contraints can be placed on Parameters for all of these methods.

Source Files

Filename Size Changed Actions
lmfit-0.7.4.tar.gz 352 KB Download File
python-lmfit.spec 1.72 KB Download File

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