Permute Dimensions

Rearrange dimensions of multidimensional array dimensions

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  • Library:

  • Simulink / Math Operations

  • Permute Dimensions block

Description

The Permute Dimensions block reorders the elements of the input signal by permuting its dimensions. You specify the permutation to be applied to the input signal using the Order parameter.

For example, to transpose a 3-by-5 input signal, specify the permutation vector [2 1] for the Order parameter. When you do, the block reorders the elements of the input signal and outputs a 3-by-5 matrix.

You can use an array of buses as an input signal to a Permute Dimensions block. For details about defining and using an array of buses, see Combine Buses into an Array of Buses.

Ports

Input

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This port accepts scalar, vector, matrix, and N-dimensional signals of any data type that Simulink® supports, including fixed-point, enumerated, and nonvirtual bus data types.

Data Types: half | single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point | enumerated | bus

Output

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The block outputs the permutation of the input signal, according to the value of the Order parameter. The output has the same data type as the input.

Data Types: half | single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point | enumerated | bus

Parameters

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Specify the permutation order to apply to the dimensions of the input signal. The value of this parameter must be an N-element vector where N is the number of dimensions of the input signal. The elements of the permutation vector must be a rearrangement of the values from 1 to N.

For example, the permutation vector [2 1] applied to a 5-by-3 input signal results in a 3-by-5 output signal, in other words, the transpose of the input signal.

Programmatic Use

Block Parameter: Order
Type: character vector
Value: N-element vector
Default: '[2 1]'

Model Examples

Permute Array Dimensions

Permute Array Dimensions

Use the Permute Dimensions block to permute the first and third dimensions of a 3-by-4-by-5 input array.

Open Model

Block Characteristics

Data Types

Boolean | bus | double | enumerated | fixed point | half | integer | single

Direct Feedthrough

yes

Multidimensional Signals

no

Variable-Size Signals

yes

Zero-Crossing Detection

no

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

PLC Code Generation
Generate Structured Text code using Simulink® PLC Coder™.

Fixed-Point Conversion
Design and simulate fixed-point systems using Fixed-Point Designer™.

See Also

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Topics

Introduced in R2007a

Simulink Documentation

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