aGrUM 2.3.2
a C++ library for (probabilistic) graphical models
DBTranslator4NumericalDiscreteVariable_inl.h
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40#pragma once
41
42
48
49
50#ifndef DOXYGEN_SHOULD_SKIP_THIS
51
53
54namespace gum {
55
56 namespace learning {
57
60 // for debugging purposes
62 }
63
67 // try to get the index of str within the NumericalDiscrete variable.
68 double d;
69 const bool b = isNumericalWithResult(str, &d);
70 if (b) {
71 const std::string cstr = compact_tostr(d);
72 if (this->back_dico_.existsSecond(cstr)) return {this->back_dico_.first(cstr)};
73 }
74
75 if (this->isMissingSymbol(str))
76 return DBTranslatedValue{std::numeric_limits< std::size_t >::max()};
77
78 if (!b) {
79 GUM_ERROR(TypeError,
80 "String \"" << str << "\" cannot be translated because it is not a number");
81 } else {
82 GUM_ERROR(UnknownLabelInDatabase,
83 "The translation of \"" << str << "\" could not be found for " << _variable_)
84 }
85 }
86
89 const DBTranslatedValue translated_val) const {
90 if (this->back_dico_.existsFirst(translated_val.discr_val))
91 return this->back_dico_.second(translated_val.discr_val);
92
93 // check if this is a missing value
94 if ((translated_val.discr_val == std::numeric_limits< std::size_t >::max())
95 && !this->missing_symbols_.empty()) {
96 return *(this->missing_symbols_.begin());
97 }
98
99 GUM_ERROR(UnknownLabelInDatabase,
100 "The back translation of \"" << translated_val.discr_val
101 << "\" could not be found");
102 }
103
106 return false;
107 }
108
111
113 INLINE bool DBTranslator4NumericalDiscreteVariable::needsReordering() const { return false; }
114
116 INLINE HashTable< std::size_t, std::size_t > DBTranslator4NumericalDiscreteVariable::reorder() {
117 return HashTable< std::size_t, std::size_t >();
118 }
119
121 INLINE std::size_t DBTranslator4NumericalDiscreteVariable::domainSize() const {
122 return _variable_.domainSize();
123 }
124
126 INLINE const NumericalDiscreteVariable*
128 return &_variable_;
129 }
130
133 return DBTranslatedValue{std::numeric_limits< std::size_t >::max()};
134 }
135
136
137 } /* namespace learning */
138
139} /* namespace gum */
140
141#endif /* DOXYGEN_SHOULD_SKIP_THIS */
The databases' cell translators for numerical discrete variables.
DBTranslator4NumericalDiscreteVariable(const NumericalDiscreteVariable &var, const std::vector< std::string > &missing_symbols, std::size_t max_dico_entries=std::numeric_limits< std::size_t >::max())
default constructor with a numerical discrete variable as translator
virtual const NumericalDiscreteVariable * variable() const final
returns the variable stored into the translator
virtual bool hasEditableDictionary() const final
indicates that the translator is never in editable dictionary mode
virtual std::string translateBack(const DBTranslatedValue translated_val) const final
returns the original value for a given translation
virtual DBTranslatedValue translate(const std::string &str) final
returns the translation of a string
virtual std::size_t domainSize() const final
returns the domain size of the variable used for translations
virtual bool needsReordering() const final
indicates that the translations should never be reordered
virtual HashTable< std::size_t, std::size_t > reorder() final
returns an empty HashTable to indicate that no reordering is needed.
virtual DBTranslatedValue missingValue() const final
returns the translation of a missing value
virtual void setEditableDictionaryMode(bool new_mode) final
sets/unset the editable dictionary mode
Bijection< std::size_t, std::string > back_dico_
the bijection relating back translated values and their original strings.
Set< std::string > missing_symbols_
the set of missing symbols
bool isMissingSymbol(const std::string &str) const
indicates whether a string corresponds to a missing symbol
#define GUM_ERROR(type, msg)
Definition exceptions.h:72
bool isNumericalWithResult(const std::string &val, double *res)
return true is a string contains a numerical (double) value
std::string compact_tostr(T value)
Returns a path to a unique file name.
include the inlined functions if necessary
Definition CSVParser.h:54
gum is the global namespace for all aGrUM entities
Definition agrum.h:46
The union class for storing the translated values in learning databases.