Submatrix

Select subset of elements (submatrix) from matrix input

  • Library:
  • DSP System Toolbox / Signal Management / Indexing

    DSP System Toolbox / Math Functions / Matrices and Linear Algebra / Matrix Operations

Description

The Submatrix block extracts a contiguous submatrix, y, from the M-by-N input matrix u. For more information about selecting the rows and columns to extract, see Range Specification Options.

Ports

Input

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Input signal, from which the block extracts the specified submatrix.

This block supports Simulink® virtual buses.

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

Output

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Submatrix selected from the input signal. The data type of the output is the same as the input.

This block supports Simulink virtual buses.

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

Parameters

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For more information about selecting the subset of elements to form the submatrix, see Range Specification Options.

The range of input rows to be retained in the output.

The input row to be used as the first and only row of the output.

Dependencies

To enable this parameter, set Row span to One row.

The input row to be used as the first row of the output.

Dependencies

To enable this parameter, set Row span to Range of rows.

The index of the input row to be used as the first and only row of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Row span to One row and Row to Index.

The index of the input row to be used as the first row of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Row span to Range of rows and Starting row to Index.

The offset of the input row to be used as the first and only row of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Row span to One row and Row to Offset from last or Offset from middle.

The offset of the input row to be used as the first row of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Row span to Range of rows and Starting row to Offset from last or Offset from middle.

The input row to be used as the last row of the output.

Dependencies

To enable this parameter, set Row span to Range of rows and set Starting row to any value except Last.

The index of the input row to be used as the last row of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Ending row to Index.

The offset of the input row to be used as the last row of the output.

Dependencies

To enable this parameter, set Ending row to Offset from middle or Offset from last.

The range of input columns to be retained in the output.

The input column to be used as the first and only column of the output.

Dependencies

To enable this parameter, set Column span to One column.

The input column to be used as the first column of the output.

Dependencies

To enable this parameter, set Column span to Range of columns.

The index of the input column to be used as the first column of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Column span to Range of columns and Starting column to Index.

The index of the input column to be used as the first and only column of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Column span to One column and Column to Index.

The offset of the input column to be used as the first and only column of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Column span to One column and Column to Offset from last or Offset from middle.

The offset of the input column to be used as the first column of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Column span to Range of columns and Starting column to Offset from last or Offset from middle.

The input column to be used as the last column of the output.

Dependencies

To enable this parameter, set Column span to Range of columns and set Starting column to any value except Last.

The index of the input column to be used as the last column of the output, specified as an integer greater than or equal to one.

Dependencies

To enable this parameter, set Ending column to Index.

The offset of the input column to be used as the last column of the output.

Dependencies

To enable this parameter, set Ending column to Offset from middle or Offset from last.

Block Characteristics

Data Types

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

Direct Feedthrough

no

Multidimensional Signals

no

Variable-Size Signals

no

Zero-Crossing Detection

no

More About

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Extended Capabilities

Fixed-Point Conversion
Convert floating-point algorithms to fixed point using Fixed-Point Designer™.

Introduced before R2006a