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Record TMultiArray

Hierarchy

Unit

Declaration

type TMultiArray = record

Description

Multidimensional array data structure.

Overview

Fields

	`DataOffset: longint;`
	`Data: array of single;`
	`Indices: TLongVectorArr;`
	`Shape: TLongVector;`
	`Strides: TLongVector;`

Methods

	`function Contiguous: TMultiArray;`
	`function Copy(Deep: boolean = True): TMultiArray;`
	`function Get(i: longint): single; overload;`
	`function GetVirtualData: TSingleVector;`
	`function Item: Single;`
	`function Matmul(Other: TMultiArray): TMultiArray;`
	`function Reshape(NewShape: TLongVector): TMultiArray;`
	`function Slice(idx: array of TLongVector): TMultiArray;`
	`function SliceBool(BoolIdx: array of TLongVector): TMultiArray;`
	`function Squeeze: TMultiArray;`
	`function T: TMultiArray;`
	`procedure Put(i: array of integer; x: single);`

Properties

	`property IsContiguous: boolean read FIsContiguous write FIsContiguous;`
	`property NDims: integer read GetNDims;`
	`property Size: longint read GetSize;`
	`property Items[idx:arrayofTLongVector]: TMultiArray read Slice;`

Description

Fields

	`DataOffset: longint;`

	`Data: array of single;`

	`Indices: TLongVectorArr;`

	`Shape: TLongVector;`

	`Strides: TLongVector;`

Methods

	`function Contiguous: TMultiArray;`
Returns contiguous copy of this array

	`function Copy(Deep: boolean = True): TMultiArray;`
Perform copying of this array. By default, the actual data is referenced rather than copied. If Deep is true, then the actual data is copied.

	`function Get(i: longint): single; overload;`
Get i-th item of the flattened array

	`function GetVirtualData: TSingleVector;`
Returns a TSingleVector containing "strided" data, instead of the actual data.

	`function Item: Single;`
Convert Self to a single-typed scalar if NDims=0

	`function Matmul(Other: TMultiArray): TMultiArray;`
Multiply self with other 2-dimensional TMultiArray

	`function Reshape(NewShape: TLongVector): TMultiArray;`
Reshape a TMultiArray into a specified shape

	`function Slice(idx: array of TLongVector): TMultiArray;`
Perform multidimensional slicing. For now Slice will return contiguous.

	`function SliceBool(BoolIdx: array of TLongVector): TMultiArray;`

	`function Squeeze: TMultiArray;`

	`function T: TMultiArray;`
Perform transpose. If NDims > 2, the reverse the axis

	`procedure Put(i: array of integer; x: single);`

Properties

	`property IsContiguous: boolean read FIsContiguous write FIsContiguous;`

	`property NDims: integer read GetNDims;`

	`property Size: longint read GetSize;`

	`property Items[idx:arrayofTLongVector]: TMultiArray read Slice;`

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