Tutorials and FAQs

The following introductory tutorials will help you get started with 21CMMC:

• MCMC Introduction
  • The Structure of 21MCMC
  • Running MCMC
  • Analysis
• MCMC with LightCones
  • Running MCMC
  • Analysis
• MCMC with Multiple Likelihoods
  • Setting up cores and likelihoods
  • Running MCMC
  • Analysis
  • Using the Luminosity Function Likelihood

If you’ve covered the tutorials and still have questions about “how to do stuff” in 21CMMC, consult the FAQs:

• MCMC FAQ
  • How to Continue Running a Chain After it has Stopped?
  • How to store arbitrary data on every iteration of the chain?
  • How to add thermal noise to observations/mocks?
  • How does 21CMMC deal with parameters outside their range?
  • What parameter ranges should I use?
  • My run crashed with BrokenProcessPool exception, what is that?
  • My run crashed and I don’t know why, can I debug?
  • Can I get a history of all parameters trialed in the MCMC?
  • Can I interactively explore my Likelihood after running MCMC?
• Allowed parameter ranges
  • Cosmology
  • Ionisation astrophysical parameters
  • Heating astrophysical parameters
• Writing Cores and Likelihoods
• How do I write a Core Module?
  • A Visibility Core Example
• How do I write a Likelihood Module?