base

Mar 15, 2023

Changes in this version

+ const BinaryType

+ const CategoricalType

+ const Float64Type

+ const SerializationFormatVersion

+ var Logger *log.Logger = log.New(os.Stdout, "", 0)

+ func CheckStrictlyCompatible(s1 FixedDataGrid, s2 FixedDataGrid) bool

+ func ConvertAllRowsToMat64(attrs []Attribute, f FixedDataGrid) ([]*mat.Dense, error)

+ func ConvertRowToMat64(attrs []Attribute, f FixedDataGrid, r int) (*mat.Dense, error)

+ func DecomposeOnAttributeValues(inst FixedDataGrid, at Attribute) map[string]FixedDataGrid

+ func DecomposeOnNumericAttributeThreshold(inst FixedDataGrid, at Attribute, val float64) map[string]FixedDataGrid

+ func DescribeError(description string, err error) error

+ func FormatError(err error, format string, args ...interface{}) error

+ func GetClass(from DataGrid, row int) string

+ func GetClassDistribution(inst FixedDataGrid) map[string]int

+ func GetClassDistributionAfterSplit(inst FixedDataGrid, at Attribute) map[string]map[string]int

+ func GetClassDistributionAfterThreshold(inst FixedDataGrid, at Attribute, val float64) map[string]map[string]int

+ func GetClassDistributionByBinaryFloatValue(inst FixedDataGrid) []int

+ func GetClassDistributionByCategoricalValue(inst FixedDataGrid) []int

+ func InstancesAreEqual(inst, other FixedDataGrid) bool

+ func InstancesTrainTestSplit(src FixedDataGrid, prop float64) (FixedDataGrid, FixedDataGrid)

+ func MarshalAttribute(a Attribute) (map[string]interface{}, error)

+ func PackFloatToBytes(val float64) []byte

+ func PackFloatToBytesInline(val float64, ret []byte)

+ func PackU64ToBytes(val uint64) []byte

+ func PackU64ToBytesInline(val uint64, ret []byte)

+ func ParseARFFGetRows(filepath string) (int, error)

+ func ParseCSVBuildInstancesFromReader(r io.ReadSeeker, attrs []Attribute, hasHeader bool, u UpdatableDataGrid) (err error)

+ func ParseCSVEstimateFilePrecision(filepath string) (int, error)

+ func ParseCSVEstimateFilePrecisionFromReader(r io.ReadSeeker) (int, error)

+ func ParseCSVGetRows(filepath string) (int, error)

+ func ParseCSVGetRowsFromReader(r io.ReadSeeker) (int, error)

+ func ParseCSVSniffAttributeNames(filepath string, hasHeaders bool) []string

+ func ParseCSVSniffAttributeNamesFromReader(r io.ReadSeeker, hasHeaders bool) []string

+ func ParseDenseARFFBuildInstancesFromReader(r io.Reader, attrs []Attribute, u UpdatableDataGrid) (err error)

+ func ParseMatchAttributes(attrs, templateAttrs []Attribute)

+ func SaveEstimatorToGob(path string, e *Estimator)

+ func SerializeAttribute(attr Attribute) ([]byte, error)

+ func SerializeInstances(inst FixedDataGrid, f io.Writer) error

+ func SerializeInstancesToCSV(inst FixedDataGrid, path string) error

+ func SerializeInstancesToCSVStream(inst FixedDataGrid, f io.Writer) error

+ func SerializeInstancesToDenseARFF(inst FixedDataGrid, path, relation string) error

+ func SerializeInstancesToDenseARFFWithAttributes(inst FixedDataGrid, rawAttrs []Attribute, path, relation string) error

+ func SerializeInstancesToFile(inst FixedDataGrid, path string) error

+ func SerializeInstancesToTarWriter(inst FixedDataGrid, tw *tar.Writer, prefix string, includeData bool) error

+ func SerializeInstancesToWriterDenseARFFWithAttributes(w io.Writer, inst FixedDataGrid, rawAttrs []Attribute, relation string) error

+ func SetClass(at UpdatableDataGrid, row int, class string)

+ func SetLogger(logger *log.Logger)

+ func SetLoggerOut(out io.Writer)

+ func Silent()

+ func UnpackBytesToFloat(val []byte) float64

+ func UnpackBytesToU64(val []byte) uint64

+ func WrapError(err error) error

+ type Attribute interface

+ Compatible func(Attribute) bool

+ Equals func(Attribute) bool

+ GetName func() string

+ GetStringFromSysVal func([]byte) string

+ GetSysValFromString func(string) []byte

+ GetType func() int

+ SetName func(string)

+ String func() string

+ func AttributeDifference(a1, a2 []Attribute) []Attribute

+ func AttributeDifferenceReferences(a1, a2 []Attribute) []Attribute

+ func AttributeIntersect(a1, a2 []Attribute) []Attribute

+ func AttributeIntersectReferences(a1, a2 []Attribute) []Attribute

+ func CheckCompatible(s1 FixedDataGrid, s2 FixedDataGrid) []Attribute

+ func DeserializeAttribute(data []byte) (Attribute, error)

+ func DeserializeAttributes(data []byte) ([]Attribute, error)

+ func GetAttributeByName(inst FixedDataGrid, name string) Attribute

+ func NonClassAttributes(d DataGrid) []Attribute

+ func NonClassFloatAttributes(d DataGrid) []Attribute

+ func ParseARFFGetAttributes(filepath string) []Attribute

+ func ParseCSVGetAttributes(filepath string, hasHeaders bool) []Attribute

+ func ParseCSVGetAttributesFromReader(r io.ReadSeeker, hasHeaders bool) []Attribute

+ func ParseCSVSniffAttributeTypes(filepath string, hasHeaders bool) []Attribute

+ func ParseCSVSniffAttributeTypesFromReader(r io.ReadSeeker, hasHeaders bool) []Attribute

+ func ReplaceDeserializedAttributeWithVersionFromInstances(deserialized Attribute, matchingWith FixedDataGrid) (Attribute, error)

+ func ReplaceDeserializedAttributesWithVersionsFromInstances(deserialized []Attribute, matchingWith FixedDataGrid) ([]Attribute, error)

+ type AttributeGroup interface

+ AddAttribute func(Attribute) error

+ Attributes func() []Attribute

+ RowSizeInBytes func() int

+ Storage func() []byte

+ String func() string

+ type AttributeSpec struct

+ func ResolveAllAttributes(d DataGrid) []AttributeSpec

+ func ResolveAttributes(d DataGrid, attrs []Attribute) []AttributeSpec

+ func (a *AttributeSpec) GetAttribute() Attribute

+ func (a *AttributeSpec) String() string

+ type BaseClassifier struct

+ TrainingData *DataGrid

+ type BaseEstimator struct

+ Data *mat.Dense

+ type BaseRegressor struct

+ Data mat.Dense

+ Labels []float64

+ Name string

+ type BinaryAttribute struct

+ Name string

+ func NewBinaryAttribute(name string) *BinaryAttribute

+ func (b *BinaryAttribute) Compatible(other Attribute) bool

+ func (b *BinaryAttribute) Equals(other Attribute) bool

+ func (b *BinaryAttribute) GetName() string

+ func (b *BinaryAttribute) GetStringFromSysVal(val []byte) string

+ func (b *BinaryAttribute) GetSysValFromString(userVal string) []byte

+ func (b *BinaryAttribute) GetType() int

+ func (b *BinaryAttribute) MarshalJSON() ([]byte, error)

+ func (b *BinaryAttribute) SetName(name string)

+ func (b *BinaryAttribute) String() string

+ func (b *BinaryAttribute) UnmarshalJSON(data []byte) error

+ type BinaryAttributeGroup struct

+ func (b *BinaryAttributeGroup) AddAttribute(a Attribute) error

+ func (b *BinaryAttributeGroup) Attributes() []Attribute

+ func (b *BinaryAttributeGroup) RowSizeInBytes() int

+ func (b *BinaryAttributeGroup) Storage() []byte

+ func (b *BinaryAttributeGroup) String() string

+ type CategoricalAttribute struct

+ Name string

+ func NewCategoricalAttribute() *CategoricalAttribute

+ func (Attr *CategoricalAttribute) Compatible(other Attribute) bool

+ func (Attr *CategoricalAttribute) Equals(other Attribute) bool

+ func (Attr *CategoricalAttribute) GetName() string

+ func (Attr *CategoricalAttribute) GetStringFromSysVal(rawVal []byte) string

+ func (Attr *CategoricalAttribute) GetSysVal(userVal string) []byte

+ func (Attr *CategoricalAttribute) GetSysValFromString(rawVal string) []byte

+ func (Attr *CategoricalAttribute) GetType() int

+ func (Attr *CategoricalAttribute) GetUsrVal(sysVal []byte) string

+ func (Attr *CategoricalAttribute) GetValues() []string

+ func (Attr *CategoricalAttribute) MarshalJSON() ([]byte, error)

+ func (Attr *CategoricalAttribute) SetName(name string)

+ func (Attr *CategoricalAttribute) String() string

+ func (Attr *CategoricalAttribute) UnmarshalJSON(data []byte) error

+ type Classifier interface

+ Fit func(FixedDataGrid) error

+ GetMetadata func() ClassifierMetadataV1

+ Load func(string) error

+ LoadWithPrefix func(*ClassifierDeserializer, string) error

+ Predict func(FixedDataGrid) (FixedDataGrid, error)

+ Save func(string) error

+ SaveWithPrefix func(*ClassifierSerializer, string) error

+ String func() string

+ type ClassifierDeserializer struct

+ Metadata *ClassifierMetadataV1

+ func ReadSerializedClassifierStub(filePath string) (*ClassifierDeserializer, error)

+ func (c *ClassifierDeserializer) Close()

+ func (c *ClassifierDeserializer) GetAttributeForKey(key string) (Attribute, error)

+ func (c *ClassifierDeserializer) GetAttributesForKey(key string) ([]Attribute, error)

+ func (c *ClassifierDeserializer) GetBytesForKey(key string) ([]byte, error)

+ func (c *ClassifierDeserializer) GetInstancesForKey(key string) (FixedDataGrid, error)

+ func (c *ClassifierDeserializer) GetJSONForKey(key string, v interface{}) error

+ func (c *ClassifierDeserializer) GetStringForKey(key string) (string, error)

+ func (c *ClassifierDeserializer) GetU64ForKey(key string) (uint64, error)

+ func (c *ClassifierDeserializer) Prefix(prefix string, suffix string) string

+ func (c *ClassifierDeserializer) ReadMetadataAtPrefix(prefix string) (ClassifierMetadataV1, error)

+ type ClassifierMetadataV1 struct

+ ClassifierMetadata map[string]interface{}

+ ClassifierName string

+ ClassifierVersion string

+ FormatVersion int

+ type ClassifierSerializer struct

+ func CreateSerializedClassifierStub(filePath string, metadata ClassifierMetadataV1) (*ClassifierSerializer, error)

+ func (c *ClassifierSerializer) Close() error

+ func (c *ClassifierSerializer) Prefix(prefix string, suffix string) string

+ func (c *ClassifierSerializer) WriteAttributeForKey(key string, a Attribute) error

+ func (c *ClassifierSerializer) WriteAttributesForKey(key string, attrs []Attribute) error

+ func (c *ClassifierSerializer) WriteBytesForKey(key string, b []byte) error

+ func (c *ClassifierSerializer) WriteInstancesForKey(key string, g FixedDataGrid, includeData bool) error

+ func (c *ClassifierSerializer) WriteJSONForKey(key string, v interface{}) error

+ func (c *ClassifierSerializer) WriteMetadataAtPrefix(prefix string, metadata ClassifierMetadataV1) error

+ func (c *ClassifierSerializer) WriteU64ForKey(key string, v uint64) error

+ type DataGrid interface

+ AddClassAttribute func(Attribute) error

+ AllAttributes func() []Attribute

+ AllClassAttributes func() []Attribute

+ Get func(AttributeSpec, int) []byte

+ GetAttribute func(Attribute) (AttributeSpec, error)

+ MapOverRows func([]AttributeSpec, func([][]byte, int) (bool, error)) error

+ RemoveClassAttribute func(Attribute) error

+ type DenseInstances struct

+ func CopyDenseInstances(template *DenseInstances, templateAttrs []Attribute) *DenseInstances

+ func DeserializeInstances(f io.ReadSeeker) (ret *DenseInstances, err error)

+ func DeserializeInstancesFromTarReader(tr *FunctionalTarReader, prefix string) (ret *DenseInstances, err error)

+ func NewDenseCopy(of FixedDataGrid) *DenseInstances

+ func NewDenseInstances() *DenseInstances

+ func NewStructuralCopy(of FixedDataGrid) *DenseInstances

+ func ParseCSVToInstances(filepath string, hasHeaders bool) (instances *DenseInstances, err error)

+ func ParseCSVToInstancesFromReader(r io.ReadSeeker, hasHeaders bool) (instances *DenseInstances, err error)

+ func ParseCSVToInstancesWithAttributeGroups(filepath string, attrGroups, classAttrGroups map[string]string, ...) (instances *DenseInstances, err error)

+ func ParseCSVToInstancesWithAttributeGroupsFromReader(r io.ReadSeeker, attrGroups, classAttrGroups map[string]string, ...) (instances *DenseInstances, err error)

+ func ParseCSVToTemplatedInstances(filepath string, hasHeaders bool, template *DenseInstances) (instances *DenseInstances, err error)

+ func ParseCSVToTemplatedInstancesFromReader(r io.ReadSeeker, hasHeaders bool, template *DenseInstances) (instances *DenseInstances, err error)

+ func ParseDenseARFFToInstances(filepath string) (ret *DenseInstances, err error)

+ func (inst *DenseInstances) AddAttribute(a Attribute) AttributeSpec

+ func (inst *DenseInstances) AddAttributeToAttributeGroup(newAttribute Attribute, ag string) (AttributeSpec, error)

+ func (inst *DenseInstances) AddClassAttribute(a Attribute) error

+ func (inst *DenseInstances) AllAttributeGroups() map[string]AttributeGroup

+ func (inst *DenseInstances) AllAttributes() []Attribute

+ func (inst *DenseInstances) AllClassAttributes() []Attribute

+ func (inst *DenseInstances) CreateAttributeGroup(name string, size int) (err error)

+ func (inst *DenseInstances) Extend(rows int) error

+ func (inst *DenseInstances) Get(a AttributeSpec, row int) []byte

+ func (inst *DenseInstances) GetAttribute(get Attribute) (AttributeSpec, error)

+ func (inst *DenseInstances) GetAttributeGroup(name string) (AttributeGroup, error)

+ func (inst *DenseInstances) MapOverRows(asv []AttributeSpec, mapFunc func([][]byte, int) (bool, error)) error

+ func (inst *DenseInstances) RemoveClassAttribute(a Attribute) error

+ func (inst *DenseInstances) RowString(row int) string

+ func (inst *DenseInstances) Set(a AttributeSpec, row int, val []byte)

+ func (inst *DenseInstances) Size() (int, int)

+ func (inst *DenseInstances) String() string

+ type Estimator interface

+ Fit func()

+ type Filter interface

+ AddAttribute func(Attribute) error

+ GetAttributesAfterFiltering func() []FilteredAttribute

+ String func() string

+ Train func() error

+ Transform func(Attribute, Attribute, []byte) []byte

+ type FilteredAttribute struct

+ New Attribute

+ Old Attribute

+ type FixedAttributeGroup struct

+ func (f *FixedAttributeGroup) AddAttribute(a Attribute) error

+ func (f *FixedAttributeGroup) Attributes() []Attribute

+ func (f *FixedAttributeGroup) RowSizeInBytes() int

+ func (f *FixedAttributeGroup) Storage() []byte

+ func (f *FixedAttributeGroup) String() string

+ type FixedDataGrid interface

+ RowString func(int) string

+ Size func() (int, int)

+ func ConvertDataFrameToInstances(df *dataframe.DataFrame, classAttrIndex int) FixedDataGrid

+ func LazyShuffle(from FixedDataGrid) FixedDataGrid

+ func LazySort(inst FixedDataGrid, direction SortDirection, attrs []AttributeSpec) (FixedDataGrid, error)

+ func SampleWithReplacement(from FixedDataGrid, size int) FixedDataGrid

+ func Shuffle(from FixedDataGrid) FixedDataGrid

+ func Sort(inst FixedDataGrid, direction SortDirection, attrs []AttributeSpec) (FixedDataGrid, error)

+ type FloatAttribute struct

+ Name string

+ Precision int

+ func NewFloatAttribute(name string) *FloatAttribute

+ func (Attr *FloatAttribute) CheckSysValFromString(rawVal string) ([]byte, error)

+ func (Attr *FloatAttribute) Compatible(other Attribute) bool

+ func (Attr *FloatAttribute) Equals(other Attribute) bool

+ func (Attr *FloatAttribute) GetFloatFromSysVal(rawVal []byte) float64

+ func (Attr *FloatAttribute) GetName() string

+ func (Attr *FloatAttribute) GetStringFromSysVal(rawVal []byte) string

+ func (Attr *FloatAttribute) GetSysValFromString(rawVal string) []byte

+ func (Attr *FloatAttribute) GetType() int

+ func (Attr *FloatAttribute) SetName(name string)

+ func (Attr *FloatAttribute) String() string

+ func (f *FloatAttribute) MarshalJSON() ([]byte, error)

+ func (f *FloatAttribute) UnmarshalJSON(data []byte) error

+ type FunctionalTarReader struct

+ Regenerate func() *tar.Reader

+ func NewFunctionalTarReader(regenFunc func() *tar.Reader) *FunctionalTarReader

+ func (f *FunctionalTarReader) GetNamedFile(name string) ([]byte, error)

+ type GoLearnError struct

+ CurrentStack string

+ Description string

+ WrappedError error

+ func (g *GoLearnError) Error() string

+ type InstancesView struct

+ func NewInstancesViewFromAttrs(src FixedDataGrid, attrs []Attribute) *InstancesView

+ func NewInstancesViewFromRows(src FixedDataGrid, rows map[int]int) *InstancesView

+ func NewInstancesViewFromVisible(src FixedDataGrid, rows []int, attrs []Attribute) *InstancesView

+ func (v *InstancesView) AddClassAttribute(a Attribute) error

+ func (v *InstancesView) AllAttributes() []Attribute

+ func (v *InstancesView) AllClassAttributes() []Attribute

+ func (v *InstancesView) Get(as AttributeSpec, row int) []byte

+ func (v *InstancesView) GetAttribute(a Attribute) (AttributeSpec, error)

+ func (v *InstancesView) MapOverRows(as []AttributeSpec, rowFunc func([][]byte, int) (bool, error)) error

+ func (v *InstancesView) RemoveClassAttribute(a Attribute) error

+ func (v *InstancesView) RowString(row int) string

+ func (v *InstancesView) Size() (int, int)

+ func (v *InstancesView) String() string

+ type LazilyFilteredInstances struct

+ func NewLazilyFilteredInstances(src FixedDataGrid, f Filter) *LazilyFilteredInstances

+ func (l *LazilyFilteredInstances) AddClassAttribute(cls Attribute) error

+ func (l *LazilyFilteredInstances) AllAttributes() []Attribute

+ func (l *LazilyFilteredInstances) AllClassAttributes() []Attribute

+ func (l *LazilyFilteredInstances) Get(as AttributeSpec, row int) []byte

+ func (l *LazilyFilteredInstances) GetAttribute(target Attribute) (AttributeSpec, error)

+ func (l *LazilyFilteredInstances) MapOverRows(asv []AttributeSpec, mapFunc func([][]byte, int) (bool, error)) error

+ func (l *LazilyFilteredInstances) RemoveClassAttribute(cls Attribute) error

+ func (l *LazilyFilteredInstances) RowString(row int) string

+ func (l *LazilyFilteredInstances) Size() (int, int)

+ func (l *LazilyFilteredInstances) String() string

+ type Mat64Instances struct

+ Data *mat.Dense

+ func InstancesFromMat64(rows, cols int, data *mat.Dense) *Mat64Instances

+ func (m *Mat64Instances) AddClassAttribute(a Attribute) error

+ func (m *Mat64Instances) AllAttributes() []Attribute

+ func (m *Mat64Instances) AllClassAttributes() []Attribute

+ func (m *Mat64Instances) Get(as AttributeSpec, row int) []byte

+ func (m *Mat64Instances) GetAttribute(a Attribute) (AttributeSpec, error)

+ func (m *Mat64Instances) MapOverRows(as []AttributeSpec, f func([][]byte, int) (bool, error)) error

+ func (m *Mat64Instances) RemoveClassAttribute(a Attribute) error

+ func (m *Mat64Instances) RowString(row int) string

+ func (m *Mat64Instances) Size() (int, int)

+ func (m *Mat64Instances) String() string

+ type Model interface

+ Score func()

+ type Predictor interface

+ Predict func()

+ type SortDirection int

+ const Ascending

+ const Descending

+ type UpdatableDataGrid interface

+ AddAttribute func(Attribute) AttributeSpec

+ Extend func(int) error

+ Set func(AttributeSpec, int, []byte)

+ func GeneratePredictionVector(from FixedDataGrid) UpdatableDataGrid