NumCosmoDataPlanckLensing

Planck 2018 CMB lensing band-power likelihood, native port (clik itype=4).

An NcmDataGauss over the 9 reconstructed $C_L^{\phi\phi}$ band-powers. The data vector is pp_hat and the inverse covariance is siginv (clik already ships the inverse, so NcmDataGauss uses it as-is). The model band-power $$ b_i = \sum_L B_{iL}\, C_L^{\phi\phi}\,\frac{L^2(L+1)^2}{2\pi} - c^0_i $$ is optionally augmented, when hascl selects CMB spectra, by the estimator renormalization $$ b_i \mathrel{+}= \sum_L R^{\phi}{iL}\, C_L^{\phi\phi}\,\frac{L^2(L+1)^2}{2\pi} + \frac{1}{A^2}\sum_X \sum_L R^{X}{iL}\, C_L^{X}\,\frac{L(L+1)}{2\pi}, $$ with $X$ running over the selected CMB spectra (TT, EE, TE, …) and $A$ the calibration. The CMB-marginalized file has hascl all zero, so only the phi block of cors survives and $b_i$ depends on $C_L^{\phi\phi}$ alone. Being an NcmDataGauss it can resample; unlike the clik wrapper it is self-contained.