BAT - Bayesian Analysis Toolkit : old-downloads

This C++ version of BAT is still being maintained, but addition of new features is unlikely. Check out our new incarnation, BAT.jl, the Bayesian analysis toolkit in Julia. In addition to Metropolis-Hastings sampling, BAT.jl supports Hamiltonian Monte Carlo (HMC) with automatic differentiation, automatic prior-based parameter space transformations, and much more. See the BAT.jl documentation.

Downloads

Our releases are hosted at our github page. This page is maintained to provide access to older files.

Version: 0.9.3 (pre 1.0)

Urgency: high

Release date: 27.09.2013

Source code: BAT-0.9.3.tar.gz (888 kB)

reference guide | installation instructions | changelog

Release notes

This version is intended as a pre-release for the stable BAT version 1.0. It contains many updates and improvements, a few fixes and several new features. The most important changes are summarized below.

New features:

Parallel Metropolis algorithm using threads (default: off)
Parameters can be fixed for any of the algorithms using BCParameter::Fix
Better handling of algorithms via setters
Added method to evaluate posterior probability on a grid (histogram)
Marginalization defaults to grid in 1D and 2D, and Metropolis in higher dimensions
Added method to get a slice in 1D and 2D of the posterior probability at a fixed point
Added a model for multivariate Gaussian combinations (models/mvc) including examples

Improvements

More plotting options and color schemes, default scheme updated
Default plotting now into pdf files
Full access to all Cuba methods
All fitters now inherit from a base fitter model
More p values use correction for degrees of freedom
MTF models now include an estimation of MC stat. uncertainty
Massive refactoring to simplify core of BAT

Fixes

Proper rounding of integers in calculation of Poisson likelihood
Removed buggy hit-or-miss integration algorithm
Linking errors on ubuntu >= 12.04
Constant priors respect fixed parameters

INTERFACE CHANGES

Properties of individual parameters are now part of the BCParameter object

   BCEngineMCMC::MCMCSetFlagFillHistograms => BCParameter::FillHistograms
   BCEngineMCMC::SetParameterRange => BCParameter::SetLimits
   BCModel::SetPriorDelta is now equivalent to BCParameter::Fix
   BCModel::SetNbins => BCParameter::SetNbins
   etc.

In user code this becomes

   #include 
   ...
   mymodel.GetParameter(i)->SetLimits(1, 10);

The plotting scheme has been changed and provides many more options

   BCH1D::Draw(int options, ovalue) => BCH1D::Draw(std::string options="BTciB1CS1D0pdf0Lmeanmode", std::vector intervals=std::vector(0))
   BCH2D:Draw(int options=0, bool drawmode=true) => BCH2D::Draw(std::string options="BTfB3CS1meangmodelmode", std::vector intervals=std::vector(0))

Accessors to low-level details in BCEngineMCMC are removed or renamed
```
   MCMCGetNTrialsFalse => MCMCGetNTrials
```

Several unused methods in BCH2D were removed

   std::vector GetLevelBoundary(double level)
   std::vector GetLevelBoundary(TH2D * h, double level)
   TGraph * GetBandGraph(double level1, double level2)
   TGraph * GetBandGraph(TH2D * h , double level1, double level2)
   TGraph ** GetBandGraphs(TH2D * h, int &n)

Use standard min and max functions in BCMath

If you are upgrading from BAT version older that 0.9.2, please also read the release notes for the intermediate versions.

For detailed list of changes see the ChangeLog.

Older versions:

0.9.4.1 (bugfix)
0.9.4 (pre 1.0)
0.9.3 (pre 1.0)
0.9.2 (pre 1.0)
0.9.1 (pre 1.0)
0.9 (pre 1.0)
0.4.3 (dev)
0.4.2 (dev)
0.4.1 (dev)
0.4 (dev)
0.3.2 (dev)
0.3.1 (dev)
0.3 (dev)
0.2.1 (dev)
0.2 (dev)
0.1 (initial release)