;============================================================================== ; ; Emcee PT settings for CBC, comoving volume ; ;============================================================================== ; ; The following provides standard settings for emcee_pt when analying a ; combact binary merger. This assumes that the prior is specified in terms ; of the source masses (srcmass1, srcmass2) and comoving volume ; (comoving_volume). To speed up convergence, the source masses are sampled in ; chirp mass and mass ratio, and the comoving volume is sampled in the log. ; ; We set the number of effective samples to 1500 because we've found that ; emcee_pt struggles to acquire more than ~8 independent samples per walker. ; [sampler] name = emcee_pt nwalkers = 200 ntemps = 20 effective-nsamples = 1500 checkpoint-interval = 2000 max-samples-per-chain = 1000 [sampler-burn_in] burn-in-test = nacl & max_posterior [sampling_params] srcmass1, srcmass2 = mchirp, q comoving_volume = logv [sampling_transforms-mchirp+q] name = mass1_mass2_to_mchirp_q mass1_param = srcmass1 mass2_param = srcmass2 [sampling_transforms-logv] name = log inputvar = comoving_volume outputvar = logv