./math/py-lmfit, Least-squares minimization with bounds and constraints

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Branch: CURRENT, Version: 0.9.9, Package name: py27-lmfit-0.9.9, Maintainer: prlw1

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.

In addition, methods for explicitly calculating confidence intervals
are provided for exploring minmization problems where the approximation
of estimating Parameter uncertainties from the covariance matrix
is questionable.


Required to run:
[devel/py-setuptools] [math/py-scipy] [math/py-numpy] [lang/python27] [lang/py-six] [math/py-asteval]

Required to build:
[pkgtools/cwrappers]

Master sites:

SHA1: a9f10957b05333f9af4f5a5fa1513e7232d376d2
RMD160: b2891fa6b125ea11e88769dc31704e681cde91a8
Filesize: 1538 KB

Version history: (Expand)


CVS history: (Expand)


   2018-04-14 07:32:22 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
py-lmfit: updated to 0.9.9

Version 0.9.9:
Lmfit now uses the asteval (https://github.com/newville/asteval) package
instead of distributing its own copy. The minimum required asteval version
is 0.9.12, which is available on PyPi. If you see import errors related to
asteval, please make sure that you actually have the latest version installed.
   2018-02-27 07:40:07 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
py-lmfit: updated to 0.9.8

0.9.8:
update doc for 5 digit-precision fit statistics
increase default precision for chi-square, etc from 3 to 5
   2016-09-16 17:20:31 by Patrick Welche | Files touched by this commit (4)
Log message:
Add py-lmfit 0.9.5

A library for least-squares minimization and data fitting in Python,
based on scipy.optimize.