make_sdm§

typed_lisa_toolkit.make_sdm(inverse_sdm: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]], /, *, frequencies: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Axis[Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Linspace, ModuleType], channel_names: Sequence[str], times: None = None, is_diagonal: Literal[False] = False) → SpectralDensity[source]§
typed_lisa_toolkit.make_sdm(inverse_sdm: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]], /, *, frequencies: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Axis[Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Linspace, ModuleType], channel_names: Sequence[str], is_diagonal: Literal[True], times: None = None) → DiagonalSpectralDensity
typed_lisa_toolkit.make_sdm(inverse_sdm: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]], /, *, frequencies: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Axis[Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Linspace, ModuleType], times: Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Axis[Array[Any, ModuleType] | ndarray[tuple[Any, ...], dtype[Any]] | Linspace, ModuleType], channel_names: Sequence[str]) → EvolutionarySpectralDensity

Make a SpectralDensity, a DiagonalSpectralDensity or an EvolutionarySpectralDensity.

Parameters:

  • inverse_sdm (AnyArray) – The inverse spectral density matrix (SDM) or inverse evolutionary spectral density matrix (ESDM). If is_diagonal is False, it must have shape (n_freqs, n_channels, n_channels) for SDM or (n_freqs, n_times, n_channels, n_channels) for ESDM. If is_diagonal is True, it must have shape (n_freqs, n_channels) and represent the diagonal elements of the inverse SDM (currently only supported for SDM, not ESDM).

  • frequencies (AnyArray) – An array of shape (n_freqs,) representing the frequency grid.

  • channel_names (Sequence[str]) – A sequence of channel names corresponding to the channels in the SDM/ESDM.

  • times (AnyArray, optional) – An array of shape (n_times,) representing the time grid. If None, a SpectralDensity will be constructed. If provided, an EvolutionarySpectralDensity will be constructed.

  • is_diagonal (bool) – Whether the SDM is diagonal. Only relevant if times is None. If True, a DiagonalSpectralDensity will be constructed. Defaults to False.