vigra::detail Namespace Reference

Classes
class	DecisionTree
class	RF_DEFAULT
	singleton default tag class - More...
class	Value_Chooser
	chooses between default type and type supplied More...
Functions
template<unsigned int N, class T , class C >
bool	contains_inf (MultiArrayView< N, T, C > const &in)
template<unsigned int N, class T , class C >
bool	contains_nan (MultiArrayView< N, T, C > const &in)
template<class T >
void	fill_external_parameters (RandomForestOptions &options, ProblemSpec< T > &ext_param)
template<class Container >
bool	find_groups_hdf5 (hid_t grp_id, Container &cont)
template<class Container >
bool	find_groups_hdf5 (std::string filename, std::string groupname, Container &cont)
template<class U , class T >
void	write_array_2_hdf5 (hid_t &id, ArrayVector< U > const &arr, std::string const &name, T type)

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Detailed Description

Functor To Calculate the Best possible Split Based on the Gini Index given Labels and Features along a given Axis

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Function Documentation

void vigra::detail::fill_external_parameters	(	RandomForestOptions &	options,
		ProblemSpec< T > &	ext_param
	)

Common helper function used in all Processors. This function analyses the options struct and calculates the real values needed for the current problem (data)

bool vigra::detail::contains_nan

(

MultiArrayView< N, T, C > const &

in

)

Returns true if MultiArray contains NaNs

bool vigra::detail::contains_inf

(

MultiArrayView< N, T, C > const &

in

)

Returns true if MultiArray contains Infs

bool vigra::detail::find_groups_hdf5	(	hid_t	grp_id,
		Container &	cont
	)

shallow search the hdf5 group for containing elements returns negative value if unsuccessful

Parameters:

grp_id	hid_t containing path to group.
cont	reference to container that supports insert(). valuetype of cont must be std::string

bool vigra::detail::find_groups_hdf5	(	std::string	filename,
		std::string	groupname,
		Container &	cont
	)

shallow search the hdf5 group for containing elements returns negative value if unsuccessful

Parameters:

filename	name of hdf5 file
groupname	path in hdf5 file
cont	reference to container that supports insert(). valuetype of cont must be std::string

void vigra::detail::write_array_2_hdf5	(	hid_t &	id,
		ArrayVector< U > const &	arr,
		std::string const &	name,
		T	type
	)

write a ArrayVector to a hdf5 dataset.