Forecasts of non-Gaussian parameter spaces using Box-Cox transformations

  title={Forecasts of non-Gaussian parameter spaces using Box-Cox transformations},
  author={Benjamin Joachimi and Andy N. Taylor},
  • Benjamin Joachimi, Andy N. Taylor
  • Published 2011
  • Physics
  • Forecasts of statistical constraints on model parameters using the Fisher matrix abound in many fields of astrophysics. The Fisher matrix formalism involves the assumption of Gaussianity in parameter space and hence fails to predict complex features of posterior probability distributions. Combining the standard Fisher matrix with Box-Cox transformations, we propose a novel method that accurately predicts arbitrary posterior shapes. The Box-Cox transformations are applied to parameter space to… CONTINUE READING

    Create an AI-powered research feed to stay up to date with new papers like this posted to ArXiv