Class
NumCosmoMathPriorGauss
Description [src]
class NumCosmoMath.PriorGauss : NumCosmoMath.Prior
{
/* No available fields */
}A gaussian prior for NcmLikelihood.
This object is a subclass of NcmPrior, serving as a base class for Gaussian priors
used by NcmLikelihood. These objects describe Gaussian prior distributions
applicable to parameters or any derived quantity.
The Gaussian prior is defined as: $$ -2\ln P(x) = \frac{\left(x - \mu\right)^2}{\sigma}, $$ where $\mu$ is the mean and $\sigma$ is the standard deviation. This Gaussian prior places higher probability density around the mean and decreases exponentially as the parameter deviates from the mean.
The prior is not normalized. It is particularly useful for defining a Gaussian prior when the analysis benefits from a smooth and symmetric distribution around the mean. Additionally, it is compatible with least-squares based analysis.
Instance methods
Methods inherited from NcmPrior (3)
ncm_prior_free
Decreases the reference count of prior atomically.
ncm_prior_is_m2lnL
ncm_prior_ref
Increases the reference count of prior atomically.
Methods inherited from NcmMSetFunc (22)
ncm_mset_func_eval
Evaluate the function func at x and store the result in res.
ncm_mset_func_eval0
Evaluate the function func and return the result. This
function is only valid if func is a scalar function.
The function’s arguments are either none, if the function is constant,
or the arguments passed to ncm_mset_func_set_eval_x().
ncm_mset_func_eval1
Evaluate the function func at x and return the result. This
function is only valid if func is a scalar function.
ncm_mset_func_eval_nvar
Evaluate the function func at x and return the result. This
function is only valid if func is a scalar function.
ncm_mset_func_eval_vector
Compute the function func at x_v and store the result in res_v. This function is
only valid if func is a vectorial function.
ncm_mset_func_free
Decreases the reference count of func by one. If the reference count
reaches zero, func is freed.
ncm_mset_func_get_dim
Gets the dimension of func.
ncm_mset_func_get_nvar
Gets the number of variables of func.
ncm_mset_func_has_nvar
Checks if func expects nvar extra variables.
ncm_mset_func_is_const
Checks if func is a constant function.
ncm_mset_func_is_scalar
Checks if func is a scalar function.
ncm_mset_func_is_vector
Checks if func is a vectorial function with dimension dim.
ncm_mset_func_numdiff_fparams
Computes the gradient of func at x and stores the result in out.
This function is only valid if func is a scalar function.
ncm_mset_func_peek_desc
ncm_mset_func_peek_name
ncm_mset_func_peek_ns
ncm_mset_func_peek_symbol
ncm_mset_func_peek_uname
Peeks unique name.
ncm_mset_func_peek_usymbol
Peeks unique symbol.
ncm_mset_func_ref
Increases the reference count of func by one.
ncm_mset_func_set_eval_x
Sets the function’s arguments to x. Once this function is called, the
function’s arguments are fixed and func becomes a constant function.
ncm_mset_func_set_meta
Sets the function’s metadata. This function is called by subclasses’ to set the function’s metadata. It should not be called by users.
Properties
Properties inherited from NcmMSetFunc (3)
NumCosmoMath.MSetFunc:dimension
NumCosmoMath.MSetFunc:eval-x
NumCosmoMath.MSetFunc:nvariables
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.
Class structure
struct NumCosmoMathPriorGaussClass {
/* no available fields */
}No description available.