tensor

package
v0.2.0 Latest Latest
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 Go to latest Published: Jul 20, 2022 License: Apache-2.0, BSD-2-Clause, BSD-3-Clause, + 9 more Imports: 5 Imported by: 0

Documentation

Overview

Package tensor provides types that implement n-dimensional arrays.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Date32 

type Date32 struct {
	// contains filtered or unexported fields
}

Date32 is an n-dim array of date32s.

func NewDate32 

func NewDate32(data *array.Data, shape, strides []int64, names []string) *Date32

NewDate32 returns a new n-dimensional array of date32s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Date32) Data 

func (tb *Date32) Data() *array.Data

func (*Date32) DataType 

func (tb *Date32) DataType() arrow.DataType

func (*Date32) Date32Values 

func (tsr *Date32) Date32Values() []arrow.Date32

func (*Date32) DimName 

func (tb *Date32) DimName(i int) string

func (*Date32) DimNames 

func (tb *Date32) DimNames() []string

func (*Date32) IsColMajor 

func (tb *Date32) IsColMajor() bool

func (*Date32) IsContiguous 

func (tb *Date32) IsContiguous() bool

func (*Date32) IsMutable 

func (tb *Date32) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Date32) IsRowMajor 

func (tb *Date32) IsRowMajor() bool

func (*Date32) Len 

func (tb *Date32) Len() int

func (*Date32) NumDims 

func (tb *Date32) NumDims() int

func (*Date32) Release 

func (tb *Date32) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Date32) Retain 

func (tb *Date32) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Date32) Shape 

func (tb *Date32) Shape() []int64

func (*Date32) Strides 

func (tb *Date32) Strides() []int64

func (*Date32) Value 

func (tsr *Date32) Value(i []int64) arrow.Date32

type Date64 

type Date64 struct {
	// contains filtered or unexported fields
}

Date64 is an n-dim array of date64s.

func NewDate64 

func NewDate64(data *array.Data, shape, strides []int64, names []string) *Date64

NewDate64 returns a new n-dimensional array of date64s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Date64) Data 

func (tb *Date64) Data() *array.Data

func (*Date64) DataType 

func (tb *Date64) DataType() arrow.DataType

func (*Date64) Date64Values 

func (tsr *Date64) Date64Values() []arrow.Date64

func (*Date64) DimName 

func (tb *Date64) DimName(i int) string

func (*Date64) DimNames 

func (tb *Date64) DimNames() []string

func (*Date64) IsColMajor 

func (tb *Date64) IsColMajor() bool

func (*Date64) IsContiguous 

func (tb *Date64) IsContiguous() bool

func (*Date64) IsMutable 

func (tb *Date64) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Date64) IsRowMajor 

func (tb *Date64) IsRowMajor() bool

func (*Date64) Len 

func (tb *Date64) Len() int

func (*Date64) NumDims 

func (tb *Date64) NumDims() int

func (*Date64) Release 

func (tb *Date64) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Date64) Retain 

func (tb *Date64) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Date64) Shape 

func (tb *Date64) Shape() []int64

func (*Date64) Strides 

func (tb *Date64) Strides() []int64

func (*Date64) Value 

func (tsr *Date64) Value(i []int64) arrow.Date64

type Float32 

type Float32 struct {
	// contains filtered or unexported fields
}

Float32 is an n-dim array of float32s.

func NewFloat32 

func NewFloat32(data *array.Data, shape, strides []int64, names []string) *Float32

NewFloat32 returns a new n-dimensional array of float32s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Float32) Data 

func (tb *Float32) Data() *array.Data

func (*Float32) DataType 

func (tb *Float32) DataType() arrow.DataType

func (*Float32) DimName 

func (tb *Float32) DimName(i int) string

func (*Float32) DimNames 

func (tb *Float32) DimNames() []string

func (*Float32) Float32Values 

func (tsr *Float32) Float32Values() []float32

func (*Float32) IsColMajor 

func (tb *Float32) IsColMajor() bool

func (*Float32) IsContiguous 

func (tb *Float32) IsContiguous() bool

func (*Float32) IsMutable 

func (tb *Float32) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Float32) IsRowMajor 

func (tb *Float32) IsRowMajor() bool

func (*Float32) Len 

func (tb *Float32) Len() int

func (*Float32) NumDims 

func (tb *Float32) NumDims() int

func (*Float32) Release 

func (tb *Float32) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Float32) Retain 

func (tb *Float32) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Float32) Shape 

func (tb *Float32) Shape() []int64

func (*Float32) Strides 

func (tb *Float32) Strides() []int64

func (*Float32) Value 

func (tsr *Float32) Value(i []int64) float32

type Float64 

type Float64 struct {
	// contains filtered or unexported fields
}

Float64 is an n-dim array of float64s.

func NewFloat64 

func NewFloat64(data *array.Data, shape, strides []int64, names []string) *Float64

NewFloat64 returns a new n-dimensional array of float64s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Float64) Data 

func (tb *Float64) Data() *array.Data

func (*Float64) DataType 

func (tb *Float64) DataType() arrow.DataType

func (*Float64) DimName 

func (tb *Float64) DimName(i int) string

func (*Float64) DimNames 

func (tb *Float64) DimNames() []string

func (*Float64) Float64Values 

func (tsr *Float64) Float64Values() []float64

func (*Float64) IsColMajor 

func (tb *Float64) IsColMajor() bool

func (*Float64) IsContiguous 

func (tb *Float64) IsContiguous() bool

func (*Float64) IsMutable 

func (tb *Float64) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Float64) IsRowMajor 

func (tb *Float64) IsRowMajor() bool

func (*Float64) Len 

func (tb *Float64) Len() int

func (*Float64) NumDims 

func (tb *Float64) NumDims() int

func (*Float64) Release 

func (tb *Float64) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Float64) Retain 

func (tb *Float64) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Float64) Shape 

func (tb *Float64) Shape() []int64

func (*Float64) Strides 

func (tb *Float64) Strides() []int64

func (*Float64) Value 

func (tsr *Float64) Value(i []int64) float64

type Int16 

type Int16 struct {
	// contains filtered or unexported fields
}

Int16 is an n-dim array of int16s.

func NewInt16 

func NewInt16(data *array.Data, shape, strides []int64, names []string) *Int16

NewInt16 returns a new n-dimensional array of int16s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Int16) Data 

func (tb *Int16) Data() *array.Data

func (*Int16) DataType 

func (tb *Int16) DataType() arrow.DataType

func (*Int16) DimName 

func (tb *Int16) DimName(i int) string

func (*Int16) DimNames 

func (tb *Int16) DimNames() []string

func (*Int16) Int16Values 

func (tsr *Int16) Int16Values() []int16

func (*Int16) IsColMajor 

func (tb *Int16) IsColMajor() bool

func (*Int16) IsContiguous 

func (tb *Int16) IsContiguous() bool

func (*Int16) IsMutable 

func (tb *Int16) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Int16) IsRowMajor 

func (tb *Int16) IsRowMajor() bool

func (*Int16) Len 

func (tb *Int16) Len() int

func (*Int16) NumDims 

func (tb *Int16) NumDims() int

func (*Int16) Release 

func (tb *Int16) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Int16) Retain 

func (tb *Int16) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Int16) Shape 

func (tb *Int16) Shape() []int64

func (*Int16) Strides 

func (tb *Int16) Strides() []int64

func (*Int16) Value 

func (tsr *Int16) Value(i []int64) int16

type Int32 

type Int32 struct {
	// contains filtered or unexported fields
}

Int32 is an n-dim array of int32s.

func NewInt32 

func NewInt32(data *array.Data, shape, strides []int64, names []string) *Int32

NewInt32 returns a new n-dimensional array of int32s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Int32) Data 

func (tb *Int32) Data() *array.Data

func (*Int32) DataType 

func (tb *Int32) DataType() arrow.DataType

func (*Int32) DimName 

func (tb *Int32) DimName(i int) string

func (*Int32) DimNames 

func (tb *Int32) DimNames() []string

func (*Int32) Int32Values 

func (tsr *Int32) Int32Values() []int32

func (*Int32) IsColMajor 

func (tb *Int32) IsColMajor() bool

func (*Int32) IsContiguous 

func (tb *Int32) IsContiguous() bool

func (*Int32) IsMutable 

func (tb *Int32) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Int32) IsRowMajor 

func (tb *Int32) IsRowMajor() bool

func (*Int32) Len 

func (tb *Int32) Len() int

func (*Int32) NumDims 

func (tb *Int32) NumDims() int

func (*Int32) Release 

func (tb *Int32) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Int32) Retain 

func (tb *Int32) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Int32) Shape 

func (tb *Int32) Shape() []int64

func (*Int32) Strides 

func (tb *Int32) Strides() []int64

func (*Int32) Value 

func (tsr *Int32) Value(i []int64) int32

type Int64 

type Int64 struct {
	// contains filtered or unexported fields
}

Int64 is an n-dim array of int64s.

func NewInt64 

func NewInt64(data *array.Data, shape, strides []int64, names []string) *Int64

NewInt64 returns a new n-dimensional array of int64s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Int64) Data 

func (tb *Int64) Data() *array.Data

func (*Int64) DataType 

func (tb *Int64) DataType() arrow.DataType

func (*Int64) DimName 

func (tb *Int64) DimName(i int) string

func (*Int64) DimNames 

func (tb *Int64) DimNames() []string

func (*Int64) Int64Values 

func (tsr *Int64) Int64Values() []int64

func (*Int64) IsColMajor 

func (tb *Int64) IsColMajor() bool

func (*Int64) IsContiguous 

func (tb *Int64) IsContiguous() bool

func (*Int64) IsMutable 

func (tb *Int64) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Int64) IsRowMajor 

func (tb *Int64) IsRowMajor() bool

func (*Int64) Len 

func (tb *Int64) Len() int

func (*Int64) NumDims 

func (tb *Int64) NumDims() int

func (*Int64) Release 

func (tb *Int64) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Int64) Retain 

func (tb *Int64) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Int64) Shape 

func (tb *Int64) Shape() []int64

func (*Int64) Strides 

func (tb *Int64) Strides() []int64

func (*Int64) Value 

func (tsr *Int64) Value(i []int64) int64

type Int8 

type Int8 struct {
	// contains filtered or unexported fields
}

Int8 is an n-dim array of int8s.

func NewInt8 

func NewInt8(data *array.Data, shape, strides []int64, names []string) *Int8

NewInt8 returns a new n-dimensional array of int8s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Int8) Data 

func (tb *Int8) Data() *array.Data

func (*Int8) DataType 

func (tb *Int8) DataType() arrow.DataType

func (*Int8) DimName 

func (tb *Int8) DimName(i int) string

func (*Int8) DimNames 

func (tb *Int8) DimNames() []string

func (*Int8) Int8Values 

func (tsr *Int8) Int8Values() []int8

func (*Int8) IsColMajor 

func (tb *Int8) IsColMajor() bool

func (*Int8) IsContiguous 

func (tb *Int8) IsContiguous() bool

func (*Int8) IsMutable 

func (tb *Int8) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Int8) IsRowMajor 

func (tb *Int8) IsRowMajor() bool

func (*Int8) Len 

func (tb *Int8) Len() int

func (*Int8) NumDims 

func (tb *Int8) NumDims() int

func (*Int8) Release 

func (tb *Int8) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Int8) Retain 

func (tb *Int8) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Int8) Shape 

func (tb *Int8) Shape() []int64

func (*Int8) Strides 

func (tb *Int8) Strides() []int64

func (*Int8) Value 

func (tsr *Int8) Value(i []int64) int8

type Interface 

type Interface interface {
	// Retain increases the reference count by 1.
	// Retain may be called simultaneously from multiple goroutines.
	Retain()

	// Release decreases the reference count by 1.
	// Release may be called simultaneously from multiple goroutines.
	// When the reference count goes to zero, the memory is freed.
	Release()

	// Len returns the number of elements in the tensor.
	Len() int

	// Shape returns the size - in each dimension - of the tensor.
	Shape() []int64

	// Strides returns the number of bytes to step in each dimension when traversing the tensor.
	Strides() []int64

	// NumDims returns the number of dimensions of the tensor.
	NumDims() int

	// DimName returns the name of the i-th dimension.
	DimName(i int) string

	// DimNames returns the names for all dimensions
	DimNames() []string

	DataType() arrow.DataType
	Data() *array.Data

	// IsMutable returns whether the underlying data buffer is mutable.
	IsMutable() bool
	IsContiguous() bool
	IsRowMajor() bool
	IsColMajor() bool
}

Interface represents an n-dimensional array of numerical data.

func New 

func New(data *array.Data, shape, strides []int64, names []string) Interface

New returns a new n-dim array from the provided backing data and the shape and strides. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

New panics if the backing data is not a numerical type.

type Uint16 

type Uint16 struct {
	// contains filtered or unexported fields
}

Uint16 is an n-dim array of uint16s.

func NewUint16 

func NewUint16(data *array.Data, shape, strides []int64, names []string) *Uint16

NewUint16 returns a new n-dimensional array of uint16s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Uint16) Data 

func (tb *Uint16) Data() *array.Data

func (*Uint16) DataType 

func (tb *Uint16) DataType() arrow.DataType

func (*Uint16) DimName 

func (tb *Uint16) DimName(i int) string

func (*Uint16) DimNames 

func (tb *Uint16) DimNames() []string

func (*Uint16) IsColMajor 

func (tb *Uint16) IsColMajor() bool

func (*Uint16) IsContiguous 

func (tb *Uint16) IsContiguous() bool

func (*Uint16) IsMutable 

func (tb *Uint16) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Uint16) IsRowMajor 

func (tb *Uint16) IsRowMajor() bool

func (*Uint16) Len 

func (tb *Uint16) Len() int

func (*Uint16) NumDims 

func (tb *Uint16) NumDims() int

func (*Uint16) Release 

func (tb *Uint16) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Uint16) Retain 

func (tb *Uint16) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Uint16) Shape 

func (tb *Uint16) Shape() []int64

func (*Uint16) Strides 

func (tb *Uint16) Strides() []int64

func (*Uint16) Uint16Values 

func (tsr *Uint16) Uint16Values() []uint16

func (*Uint16) Value 

func (tsr *Uint16) Value(i []int64) uint16

type Uint32 

type Uint32 struct {
	// contains filtered or unexported fields
}

Uint32 is an n-dim array of uint32s.

func NewUint32 

func NewUint32(data *array.Data, shape, strides []int64, names []string) *Uint32

NewUint32 returns a new n-dimensional array of uint32s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Uint32) Data 

func (tb *Uint32) Data() *array.Data

func (*Uint32) DataType 

func (tb *Uint32) DataType() arrow.DataType

func (*Uint32) DimName 

func (tb *Uint32) DimName(i int) string

func (*Uint32) DimNames 

func (tb *Uint32) DimNames() []string

func (*Uint32) IsColMajor 

func (tb *Uint32) IsColMajor() bool

func (*Uint32) IsContiguous 

func (tb *Uint32) IsContiguous() bool

func (*Uint32) IsMutable 

func (tb *Uint32) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Uint32) IsRowMajor 

func (tb *Uint32) IsRowMajor() bool

func (*Uint32) Len 

func (tb *Uint32) Len() int

func (*Uint32) NumDims 

func (tb *Uint32) NumDims() int

func (*Uint32) Release 

func (tb *Uint32) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Uint32) Retain 

func (tb *Uint32) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Uint32) Shape 

func (tb *Uint32) Shape() []int64

func (*Uint32) Strides 

func (tb *Uint32) Strides() []int64

func (*Uint32) Uint32Values 

func (tsr *Uint32) Uint32Values() []uint32

func (*Uint32) Value 

func (tsr *Uint32) Value(i []int64) uint32

type Uint64 

type Uint64 struct {
	// contains filtered or unexported fields
}

Uint64 is an n-dim array of uint64s.

func NewUint64 

func NewUint64(data *array.Data, shape, strides []int64, names []string) *Uint64

NewUint64 returns a new n-dimensional array of uint64s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Uint64) Data 

func (tb *Uint64) Data() *array.Data

func (*Uint64) DataType 

func (tb *Uint64) DataType() arrow.DataType

func (*Uint64) DimName 

func (tb *Uint64) DimName(i int) string

func (*Uint64) DimNames 

func (tb *Uint64) DimNames() []string

func (*Uint64) IsColMajor 

func (tb *Uint64) IsColMajor() bool

func (*Uint64) IsContiguous 

func (tb *Uint64) IsContiguous() bool

func (*Uint64) IsMutable 

func (tb *Uint64) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Uint64) IsRowMajor 

func (tb *Uint64) IsRowMajor() bool

func (*Uint64) Len 

func (tb *Uint64) Len() int

func (*Uint64) NumDims 

func (tb *Uint64) NumDims() int

func (*Uint64) Release 

func (tb *Uint64) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Uint64) Retain 

func (tb *Uint64) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Uint64) Shape 

func (tb *Uint64) Shape() []int64

func (*Uint64) Strides 

func (tb *Uint64) Strides() []int64

func (*Uint64) Uint64Values 

func (tsr *Uint64) Uint64Values() []uint64

func (*Uint64) Value 

func (tsr *Uint64) Value(i []int64) uint64

type Uint8 

type Uint8 struct {
	// contains filtered or unexported fields
}

Uint8 is an n-dim array of uint8s.

func NewUint8 

func NewUint8(data *array.Data, shape, strides []int64, names []string) *Uint8

NewUint8 returns a new n-dimensional array of uint8s. If strides is nil, row-major strides will be inferred. If names is nil, a slice of empty strings will be created.

func (*Uint8) Data 

func (tb *Uint8) Data() *array.Data

func (*Uint8) DataType 

func (tb *Uint8) DataType() arrow.DataType

func (*Uint8) DimName 

func (tb *Uint8) DimName(i int) string

func (*Uint8) DimNames 

func (tb *Uint8) DimNames() []string

func (*Uint8) IsColMajor 

func (tb *Uint8) IsColMajor() bool

func (*Uint8) IsContiguous 

func (tb *Uint8) IsContiguous() bool

func (*Uint8) IsMutable 

func (tb *Uint8) IsMutable() bool

IsMutable returns whether the underlying data buffer is mutable.

func (*Uint8) IsRowMajor 

func (tb *Uint8) IsRowMajor() bool

func (*Uint8) Len 

func (tb *Uint8) Len() int

func (*Uint8) NumDims 

func (tb *Uint8) NumDims() int

func (*Uint8) Release 

func (tb *Uint8) Release()

Release decreases the reference count by 1. Release may be called simultaneously from multiple goroutines. When the reference count goes to zero, the memory is freed.

func (*Uint8) Retain 

func (tb *Uint8) Retain()

Retain increases the reference count by 1. Retain may be called simultaneously from multiple goroutines.

func (*Uint8) Shape 

func (tb *Uint8) Shape() []int64

func (*Uint8) Strides 

func (tb *Uint8) Strides() []int64

func (*Uint8) Uint8Values 

func (tsr *Uint8) Uint8Values() []uint8

func (*Uint8) Value 

func (tsr *Uint8) Value(i []int64) uint8

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