Main Interface

GWDALI.GWDALI(GwPrms, detectors, FreeParams, new_priors=None, approx='TaylorF2', method='Doublet', sampler='nestle', diff_method='autodiff', dali_tensors=None, step_size=[1.e-6], run_sampler=True, hide_info=False, npoints=300, nwalkers=None, ntemps=10, nburn=0., limits=None, pos0=None, npool=None, verbose=True, remove_out=True, output_name=None, save_bilby_path=True, bilby_path='outputs_bilby/', enable_jax_waveforms=True, **kwargs)

Main interface of GWDALI v1.0.

Computes:

  • Detector strains

  • Signal-to-noise ratios

  • Fisher Matrix

  • Doublet tensors

  • Triplet tensors

  • Posterior samples

Parameters:

  • GwPrms (dictionary) – Dictionary containing GW source parameters.

  • detectors (list) – Detector network configuration.

  • FreeParams (list) – Free parameters used in the inference.

  • new_priors (dictionary) – Redefine default priors.

  • approx (str) – Waveform approximant.

  • method (str) – Exact/Fisher/DALI method ["Exact", "Fisher", "Singlet", "Doublet", "Triplet"].

  • sampler (str) – Posterior sampler backend from bilby.

  • diff_method (str) – Derivative method ["autodiff", "numdiff"].

  • dali_tensors (list) – User-defined DALI tensors (list of arrays).

  • step_size (float or list) – Numerical derivative step sizes (float or list).

  • run_sampler (bool) – Run posterior sampling.

  • hide_info (bool) – Hide terminal outputs.

  • npoints (int) – Number of posterior samples.

  • nwalkers (int) – Number of walkers used in MCMC samplers.

  • ntemps (int) – Number of temperatures in parallel tempering samplers.

  • nburn (float) – Burn-in fraction.

  • limits (dictionary) – Parameter limits used in the sampler.

  • pos0 (array) – Initial walker positions.

  • npool (int) – Number of multiprocessing pools.

  • verbose (bool) – Show sampler outputs.

  • remove_out (bool) – Remove posterior outliers.

  • output_name (str) – Output filename.

  • save_bilby_path (bool) – Save bilby outputs.

  • bilby_path (str) – Output directory for bilby files.

  • enable_jax_waveforms (bool) – Enable JAX waveform backend.

  • disable_jit (bool) – Disable jax.jit().

  • EarthRotation (bool) – Enable Earth rotation corrections.

  • jitgrad (bool) – Enable jax.jit() on derivatives.

Supported approximants:

  • "TaylorF2"

  • "TaylorF2_ISCO"

  • "TaylorF2_Spinless"

  • "TaylorF2_Spinless_0PN"

  • "IMRPhenomA"

  • "IMRPhenomB"

  • "IMRPhenomC"

  • "IMRPhenomD"

  • "IMRPhenomHM"

Returns:

Results, Tensors, runtimes

Return type:

tuple