Class
NumCosmoGalaxySDShapeHSMGaussGlobal
Description [src]
final class NumCosmo.GalaxySDShapeHSMGaussGlobal : NumCosmo.GalaxySDShape
{
/* No available fields */
}Class describing a galaxy sample shape distribution with a truncated gaussian p.d.f. convoluted with gaussian noise. Uses the HSM shape measurement products with global shape noise, i.e., the same shape noise for all galaxies in the sample.
Functions
nc_galaxy_sd_shape_hsm_gauss_global_clear
Decrease the reference count of gsdsgauss by one, and sets the pointer *gsdsgauss to
NULL.
nc_galaxy_sd_shape_hsm_gauss_global_sigma_from_std_shape
Computes the internal variance parameter ($\sigma$) of the Gaussian shape model corresponding to a given observed shape dispersion ($s$).
nc_galaxy_sd_shape_hsm_gauss_global_std_shape_from_sigma
Computes the physical (true) shape standard deviation $s$ corresponding to a given internal Gaussian model dispersion $\sigma$.
Instance methods
nc_galaxy_sd_shape_hsm_gauss_global_data_get
Gets the observed ellipticity components and the gaussian noise dispersion.
nc_galaxy_sd_shape_hsm_gauss_global_data_set
Sets the observed ellipticity components and the gaussian noise dispersion.
nc_galaxy_sd_shape_hsm_gauss_global_gen
Generates a galaxy sample shape and stores its observed ellipticity in the
frame coord. The shape is generated in the celestial frame and mapped to
coord (see NcWLEllipticityFrame); since the intrinsic shape and noise are
isotropic the generation is frame-symmetric, while the additive bias (c1,
c2) is taken to be already expressed in coord.
Methods inherited from NcGalaxySDShape (12)
nc_galaxy_sd_shape_apply_shear
Applies the reduced shear g to the intrinsic ellipticity E, storing the resulting
observed ellipticity in E_obs. The transformation depends on the
NcGalaxyWLObsEllipConv configured in gsds.
nc_galaxy_sd_shape_apply_shear_inv
Applies the inverse shear transformation using g to recover the intrinsic
ellipticity E from the observed ellipticity E_obs. The transformation depends
on the NcGalaxySDShapeEllipsisType configured in gsds.
nc_galaxy_sd_shape_direct_estimate
Computes the estimate of the galaxy shape using the direct method.
nc_galaxy_sd_shape_eval_at_nodes
Evaluates the shape likelihood P(epsilon_obs | z_j, data) at every GL node,
writing the result into out. Requires prior call to nc_galaxy_sd_shape_prepare_at_nodes().
nc_galaxy_sd_shape_free
Decreases the reference count of gsds by one.
nc_galaxy_sd_shape_gen
Generates a new galaxy shape. The NcGalaxySDShapeData object data must be
initialized before calling this method.
nc_galaxy_sd_shape_get_ellip_conv
Gets the ellipse type of gsds.
nc_galaxy_sd_shape_integ
Creates a new galaxy shape integrand.
nc_galaxy_sd_shape_lndet_jac
Computes the natural logarithm of the absolute value of the Jacobian determinant of the transformation from intrinsic to observed ellipticity.
nc_galaxy_sd_shape_prepare_data_array
Prepares the matrix to compute the probability density of the observable shape.
nc_galaxy_sd_shape_prepare_data_array_at_nodes
Pre-computes cached quantities (Σ_crit per node, Σ(R)) for the fixed GL quadrature path.
nc_galaxy_sd_shape_ref
Increases the reference count of gsds by one.
Properties
NumCosmo.GalaxySDShapeHSMGaussGlobal:sigma
The $\sigma$ parameter of the truncated gaussian distribution.
Properties inherited from NcGalaxySDShape (1)
Properties inherited from NcmModel (9)
NumCosmoMath.Model:implementation
NumCosmoMath.Model:name
NumCosmoMath.Model:nick
NumCosmoMath.Model:params-types
NumCosmoMath.Model:reparam
NumCosmoMath.Model:scalar-params-len
NumCosmoMath.Model:sparam-array
NumCosmoMath.Model:submodel-array
NumCosmoMath.Model:vector-params-len
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.