MCMC Parameter Fitting

Note

MCMC fitting requires additional dependencies. Install them with: pip install VegasAfterglow[mcmc]

See also

Parameter Reference for parameter details and typical ranges. GRB Afterglow Physics for the underlying physical models.

• MCMC Best Practices
  • Start Simple, Add Complexity Gradually
  • Why Complex Models Are Problematic
  • When to Use Complex Models
• Basic Setup
  • Fitter Constructor
  • Setting up Data and the Fitter
  • Unit Conversion
  • Data Selection and Optimization
• Model Configurations
  • TopHat + ISM (Default)
  • Jet Structure Variations
  • Medium Type Variations
  • Reverse Shock
  • Inverse Compton Radiation
  • Energy Injection
  • Complex Model Combinations
• Running MCMC
  • Choosing a Sampler
  • Fitter.fit() Interface
  • Basic MCMC Execution
• Analyzing Results
  • Parameter Constraints
  • Model Predictions
  • Visualization
• Advanced Fitting
  • Custom Priors
  • Custom Likelihood
  • Custom Jet Profiles
  • Custom Medium Profiles
  • Speeding Up Custom Profiles with @gil_free
  • Performance Notes
• Troubleshooting