SHOGUN
4.1.0
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: Pseudo random number geneartor
It is based on SIMD oriented Fast Mersenne Twister(SFMT) pseudorandom number generator.
Public Member Functions | |
CRandom () | |
CRandom (uint32_t seed) | |
virtual | ~CRandom () |
void | set_seed (uint32_t seed) |
uint32_t | get_seed () const |
uint32_t | random_32 () const |
uint64_t | random_64 () const |
int32_t | random_s32 () const |
int64_t | random_s64 () const |
uint64_t | random (uint64_t min_value, uint64_t max_value) |
int64_t | random (int64_t min_value, int64_t max_value) |
uint32_t | random (uint32_t min_value, uint32_t max_value) |
int32_t | random (int32_t min_value, int32_t max_value) |
float32_t | random (float32_t min_value, float32_t max_value) |
float64_t | random (float64_t min_value, float64_t max_value) |
floatmax_t | random (floatmax_t min_value, floatmax_t max_value) |
void | fill_array (uint32_t *array, int32_t size) const |
void | fill_array (uint64_t *array, int32_t size) const |
void | fill_array_oc (float64_t *array, int32_t size) const |
void | fill_array_co (float64_t *array, int32_t size) const |
void | fill_array_oo (float64_t *array, int32_t size) const |
void | fill_array_c1o2 (float64_t *array, int32_t size) const |
float64_t | random_close () const |
float64_t | random_open () const |
float64_t | random_half_open () const |
float64_t | normal_distrib (float64_t mu, float64_t sigma) const |
float64_t | std_normal_distrib () const |
virtual const char * | get_name () const |
virtual CSGObject * | shallow_copy () const |
virtual CSGObject * | deep_copy () const |
virtual bool | is_generic (EPrimitiveType *generic) const |
template<class T > | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
template<> | |
void | set_generic () |
void | unset_generic () |
virtual void | print_serializable (const char *prefix="") |
virtual bool | save_serializable (CSerializableFile *file, const char *prefix="") |
virtual bool | load_serializable (CSerializableFile *file, const char *prefix="") |
void | set_global_io (SGIO *io) |
SGIO * | get_global_io () |
void | set_global_parallel (Parallel *parallel) |
Parallel * | get_global_parallel () |
void | set_global_version (Version *version) |
Version * | get_global_version () |
SGStringList< char > | get_modelsel_names () |
void | print_modsel_params () |
char * | get_modsel_param_descr (const char *param_name) |
index_t | get_modsel_param_index (const char *param_name) |
void | build_gradient_parameter_dictionary (CMap< TParameter *, CSGObject * > *dict) |
virtual void | update_parameter_hash () |
virtual bool | parameter_hash_changed () |
virtual bool | equals (CSGObject *other, float64_t accuracy=0.0, bool tolerant=false) |
virtual CSGObject * | clone () |
Static Public Member Functions | |
static uint32_t | generate_seed () |
Public Attributes | |
SGIO * | io |
Parallel * | parallel |
Version * | version |
Parameter * | m_parameters |
Parameter * | m_model_selection_parameters |
Parameter * | m_gradient_parameters |
uint32_t | m_hash |
Protected Member Functions | |
virtual void | load_serializable_pre () throw (ShogunException) |
virtual void | load_serializable_post () throw (ShogunException) |
virtual void | save_serializable_pre () throw (ShogunException) |
virtual void | save_serializable_post () throw (ShogunException) |
CRandom | ( | ) |
default ctor
Definition at line 29 of file Random.cpp.
CRandom | ( | uint32_t | seed | ) |
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virtual |
dtor
Definition at line 47 of file Random.cpp.
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inherited |
Builds a dictionary of all parameters in SGObject as well of those of SGObjects that are parameters of this object. Dictionary maps parameters to the objects that own them.
dict | dictionary of parameters to be built. |
Definition at line 597 of file SGObject.cpp.
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virtualinherited |
Creates a clone of the current object. This is done via recursively traversing all parameters, which corresponds to a deep copy. Calling equals on the cloned object always returns true although none of the memory of both objects overlaps.
Definition at line 714 of file SGObject.cpp.
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virtualinherited |
A deep copy. All the instance variables will also be copied.
Definition at line 198 of file SGObject.cpp.
Recursively compares the current SGObject to another one. Compares all registered numerical parameters, recursion upon complex (SGObject) parameters. Does not compare pointers!
May be overwritten but please do with care! Should not be necessary in most cases.
other | object to compare with |
accuracy | accuracy to use for comparison (optional) |
tolerant | allows linient check on float equality (within accuracy) |
Definition at line 618 of file SGObject.cpp.
void fill_array | ( | uint32_t * | array, |
int32_t | size | ||
) | const |
Fill an array of unsinged 32 bit integer
array | 32-bit unsigened int array to be filled |
size | size of the array |
Definition at line 140 of file Random.cpp.
void fill_array | ( | uint64_t * | array, |
int32_t | size | ||
) | const |
Fill an array of unsinged 64 bit integer
array | 64-bit unsigened int array to be filled |
size | size of the array |
Definition at line 153 of file Random.cpp.
void fill_array_c1o2 | ( | float64_t * | array, |
int32_t | size | ||
) | const |
Fills an array of float64_t with randoms from the [1,2) interval
array | |
size |
Definition at line 205 of file Random.cpp.
void fill_array_co | ( | float64_t * | array, |
int32_t | size | ||
) | const |
Fills an array of float64_t with randoms from the [0,1) interval
array | |
size |
Definition at line 179 of file Random.cpp.
void fill_array_oc | ( | float64_t * | array, |
int32_t | size | ||
) | const |
Fills an array of float64_t with randoms from the (0,1] interval
array | |
size |
Definition at line 166 of file Random.cpp.
void fill_array_oo | ( | float64_t * | array, |
int32_t | size | ||
) | const |
Fills an array of float64_t with randoms from the (0,1) interval
array | |
size |
Definition at line 192 of file Random.cpp.
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static |
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inherited |
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inherited |
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inherited |
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inherited |
Definition at line 498 of file SGObject.cpp.
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inherited |
Returns description of a given parameter string, if it exists. SG_ERROR otherwise
param_name | name of the parameter |
Definition at line 522 of file SGObject.cpp.
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inherited |
Returns index of model selection parameter with provided index
param_name | name of model selection parameter |
Definition at line 535 of file SGObject.cpp.
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virtual |
uint32_t get_seed | ( | ) | const |
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virtualinherited |
If the SGSerializable is a class template then TRUE will be returned and GENERIC is set to the type of the generic.
generic | set to the type of the generic if returning TRUE |
Definition at line 296 of file SGObject.cpp.
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virtualinherited |
Load this object from file. If it will fail (returning FALSE) then this object will contain inconsistent data and should not be used!
file | where to load from |
prefix | prefix for members |
Definition at line 369 of file SGObject.cpp.
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protectedvirtualinherited |
Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_POST is called.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel, CWeightedDegreePositionStringKernel, CList, CAlphabet, CLinearHMM, CGaussianKernel, CInverseMultiQuadricKernel, CCircularKernel, and CExponentialKernel.
Definition at line 426 of file SGObject.cpp.
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protectedvirtualinherited |
Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::LOAD_SERIALIZABLE_PRE is called.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool >, and CDynamicObjectArray.
Definition at line 421 of file SGObject.cpp.
Sample a normal distrbution. Using Ziggurat algorithm
mu | mean |
sigma | variance |
Definition at line 233 of file Random.cpp.
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virtualinherited |
Definition at line 262 of file SGObject.cpp.
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inherited |
prints all parameter registered for model selection and their type
Definition at line 474 of file SGObject.cpp.
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virtualinherited |
prints registered parameters out
prefix | prefix for members |
Definition at line 308 of file SGObject.cpp.
uint64_t random | ( | uint64_t | min_value, |
uint64_t | max_value | ||
) |
int64_t random | ( | int64_t | min_value, |
int64_t | max_value | ||
) |
uint32_t random | ( | uint32_t | min_value, |
uint32_t | max_value | ||
) |
int32_t random | ( | int32_t | min_value, |
int32_t | max_value | ||
) |
floatmax_t random | ( | floatmax_t | min_value, |
floatmax_t | max_value | ||
) |
uint32_t random_32 | ( | ) | const |
Generate an unsigned 32-bit random integer
Definition at line 130 of file Random.cpp.
uint64_t random_64 | ( | ) | const |
Generate an unsigned 64-bit random integer
Definition at line 135 of file Random.cpp.
float64_t random_close | ( | ) | const |
float64_t random_half_open | ( | ) | const |
float64_t random_open | ( | ) | const |
int32_t random_s32 | ( | ) | const |
int64_t random_s64 | ( | ) | const |
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virtualinherited |
Save this object to file.
file | where to save the object; will be closed during returning if PREFIX is an empty string. |
prefix | prefix for members |
Definition at line 314 of file SGObject.cpp.
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protectedvirtualinherited |
Can (optionally) be overridden to post-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_POST is called.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel.
Definition at line 436 of file SGObject.cpp.
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protectedvirtualinherited |
Can (optionally) be overridden to pre-initialize some member variables which are not PARAMETER::ADD'ed. Make sure that at first the overridden method BASE_CLASS::SAVE_SERIALIZABLE_PRE is called.
ShogunException | will be thrown if an error occurs. |
Reimplemented in CKernel, CDynamicArray< T >, CDynamicArray< float64_t >, CDynamicArray< float32_t >, CDynamicArray< int32_t >, CDynamicArray< char >, CDynamicArray< bool >, and CDynamicObjectArray.
Definition at line 431 of file SGObject.cpp.
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inherited |
Definition at line 41 of file SGObject.cpp.
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inherited |
Definition at line 46 of file SGObject.cpp.
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inherited |
Definition at line 51 of file SGObject.cpp.
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inherited |
Definition at line 56 of file SGObject.cpp.
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inherited |
Definition at line 61 of file SGObject.cpp.
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inherited |
Definition at line 66 of file SGObject.cpp.
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inherited |
Definition at line 71 of file SGObject.cpp.
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inherited |
Definition at line 76 of file SGObject.cpp.
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inherited |
Definition at line 81 of file SGObject.cpp.
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inherited |
Definition at line 86 of file SGObject.cpp.
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inherited |
Definition at line 91 of file SGObject.cpp.
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inherited |
Definition at line 96 of file SGObject.cpp.
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inherited |
Definition at line 101 of file SGObject.cpp.
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inherited |
Definition at line 106 of file SGObject.cpp.
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inherited |
Definition at line 111 of file SGObject.cpp.
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inherited |
set generic type to T
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inherited |
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inherited |
set the parallel object
parallel | parallel object to use |
Definition at line 241 of file SGObject.cpp.
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inherited |
set the version object
version | version object to use |
Definition at line 283 of file SGObject.cpp.
void set_seed | ( | uint32_t | seed | ) |
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virtualinherited |
A shallow copy. All the SGObject instance variables will be simply assigned and SG_REF-ed.
Reimplemented in CGaussianKernel.
Definition at line 192 of file SGObject.cpp.
float64_t std_normal_distrib | ( | ) | const |
Sample a standard normal distribution, i.e. mean = 0, var = 1.0
Definition at line 238 of file Random.cpp.
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inherited |
unset generic type
this has to be called in classes specializing a template class
Definition at line 303 of file SGObject.cpp.
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virtualinherited |
Updates the hash of current parameter combination
Definition at line 248 of file SGObject.cpp.
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inherited |
io
Definition at line 369 of file SGObject.h.
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inherited |
parameters wrt which we can compute gradients
Definition at line 384 of file SGObject.h.
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inherited |
Hash of parameter values
Definition at line 387 of file SGObject.h.
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inherited |
model selection parameters
Definition at line 381 of file SGObject.h.
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inherited |
parameters
Definition at line 378 of file SGObject.h.
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inherited |
parallel
Definition at line 372 of file SGObject.h.
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inherited |
version
Definition at line 375 of file SGObject.h.