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Python Library for Particle based estimation methods
License: GNU Lesser General Public License v3.0
This project forked from jerkern/pyparticleest
Python Library for Particle based estimation methods
License: GNU Lesser General Public License v3.0
Useful links ============ Project homepage: http://www.control.lth.se/Staff/JerkerNordh/pyparticleest.html Source code: https://github.com/jerkern/pyParticleEst Documentation: http://pyparticleest.readthedocs.org Introduction ============ This is a library to assist with calculations for estimation problems using particle based methods, it contains a number of algorithms such as the Particle Filter, Auxiliary Particle Filter and support several variants of Particle Smoothing through the use of Backward Simulation (FFBSi) techniques but also methods such as the Metropolis-Hastings Backward Proposer (MHBP) and the Metropolis-Hastings Improved Particle Smoother (MHIPS). It also provides a framework for doing parameter estimation in nonlinear models using Expectation Maximization combined with the particle smoothing algorithms presented above. (PS-EM). The use of Rao-Blackwellized models is considered an importan special case and extensive support for it is provided. The structure is based on presenting a number of interfaces that a problem specific class must implement in order to use the algorithms. To assisst the end user base classes for common model structures, such as Mixed Linear/Nonlinear Gaussian (MLNLG) models are provided to keep the implementation effort to a minimum. The idea is to provide an easy prototyping enviroment for testing different algorithms and model formulations when solving a problem and to act as a stepping stone for a later more performance oriented problem specific implementation by the end user. (outside the scope of this framework) Installation ============ Using PyPI ********** The package is hosted on PyPI, so on many system you can just run: pip install pyParticleEst Manual installation ******************* Make sure that you have numpy and scipy installed After downloading the code (see link at top of this document) run: python setup.py install This will build the code and install it to your system using distutils. Non-Linux systems ***************** There is currently no binary distribution, thus you have to have a C-compiler on your system for distutils to build the C-extension modules. On Unix-like systems this normally isn't an issue, but for Windows it may be a bit tricker. If compilation of the C code fails it will fall back to using pure python code, this is slower but should work on all platforms but will print a warning when using the library. This link provides some advice on how to configure MinGW to compile on Windows. http://eli.thegreenplace.net/2008/06/28/compiling-python-extensions-with-distutils-and-mingw If you get an error "Unable to find vcvarsall.bat" you most likely don't have a correctly configured compilation environment. Perhaps this link will be helpful: http://stackoverflow.com/questions/2817869/error-unable-to-find-vcvarsall-bat
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