MatrixExtractor

Select elements of an input matrix.

    MatrixExtractor

Library

Activate/MatrixOperations

Description

Select elements of input matrix by specifying the index of first and second dimensions. The index can be specified as block parameter or externally fed with an optional input.

Parameters

MatrixExtractor_0

NameLabelDescriptionData TypeValid Values

extractx

Index vector I

Structure

extractx/x_selectall

: (all)

Select all rows.

Number

0
1

extractx/x_vectorindex

Defined as parameter

Select rows by specified indices.

Number

0
1

extractx/x_startingindex

i=I(1) defined as parameter

Select rows by specified starting index and output size.

Number

0
1

extractx/x_startingindexdecreasing

i=I(1) defined as parameter (decreasing)

Select rows specified by the ending index and output size.

Number

0
1

extractx/x_vectorindexport

Defined by input

Select rows by the indices provided externally.

Number

0
1

extractx/x_startingindexport

i=I(1) defined by input

Select rows from starting index provided externally and output size.

Number

0
1

extractx/x_startingindexportdecreasing

i=I(1) defined by input (decreasing)

Select rows specified by the ending index provided externally and output size.

Number

0
1

x_vector_index

Index parameter

Structure

x_vector_index/x_vi

Index vector I parameter

Indices of selected rows.

Cell of vectors

x_starting_index

Index parameter

Structure

x_starting_index/x_si

i=I(1) parameter

The index of starting row.

Cell of vectors of size 1

x_starting_index/x_osz

Output size

The number of rows of output (number of indices to be selected).

Cell of numbers

x_starting_indexdecreasing

Index parameter

Structure

x_starting_indexdecreasing/x_si

i=I(1) parameter

Ending index.

Cell of vectors of size 1

x_starting_indexdecreasing/x_osz

Output size

The number of rows of output (number of indices to be selected).

Cell of numbers

x_starting_index_port

Index parameter

Structure

x_starting_index_port/x_osz

Output size

The number of rows of output (number of indices to be selected).

Cell of vectors of size 1

x_starting_index_portdecreasing

Index parameter

Structure

x_starting_index_portdecreasing/x_osz

Output size

The number of rows of output (number of indices to be selected).

Cell of vectors of size 1

extracty

Index vector J

Structure

extracty/y_selectall

: (all)

Select all columns.

Number

0
1

extracty/y_vectorindex

Defined as parameter

Select columns by specified indices.

Number

0
1

extracty/y_startingindex

j=J(1) defined as parameter

Select columns by specified starting index and output size.

Number

0
1

extracty/y_startingindexdecreasing

j=J(1) defined as parameter (decreasing)

Select columns specified by the ending index and output size.

Number

0
1

extracty/y_vectorindexport

Defined by input

Select columns by the indices provided externally.

Number

0
1

extracty/y_startingindexport

j=J(1) defined by input

Select columns from starting index provided externally and output size.

Number

0
1

extracty/y_startingindexportdecreasing

j=J(1) defined by input (decreasing)

Select columns specified by the ending index provided externally and output size.

Number

0
1

y_vector_index

Index parameter

Structure

y_vector_index/y_vi

Index vector J parameter

Indices of selected columns.

Cell of vectors

y_starting_index

Index parameter

Structure

y_starting_index/y_si

j=J(1) parameter

The index of starting column.

Cell of vectors of size 1

y_starting_index/y_osz

Output size

Cell of numbers

y_starting_indexdecreasing

Index parameter

Structure

y_starting_indexdecreasing/y_si

j=J(1) parameter

Ending index

Cell of vectors of size 1

y_starting_indexdecreasing/y_osz

Output size

The number of columns of output (number of indices to be selected).

Cell of numbers

y_starting_index_port

Index parameter

Structure

y_starting_index_port/y_osz

Output size

The number of columns of output (number of indices to be selected).

Cell of vectors of size 1

y_starting_index_portdecreasing

Index parameter

Structure

y_starting_index_portdecreasing/y_osz

Output size

The number of columns of output (number of indices to be selected).

Cell of vectors of size 1

onebased

One-based indexing

To index a matrix, start from one when checked, start from zero when unchecked.

Number

0
1

externalActivation

External activation

Specifies whether the block receives an external activation or inherits its activation through its regular input ports. When External Activation is selected, an additional activation port is added to the block. By default, external activation is not selected.

Number

0
1

Ports

NameTypeDescriptionIO TypeNumber

U

explicit

input

1

Port 2

explicit

input

1-extractx.x_selectall*1-extractx.x_vectorindex*1-extractx.x_startingindex*1-extractx.x_startingindexdecreasing+1-extracty.y_selectall*1-extracty.y_vectorindex*1-extracty.y_startingindex*1-extracty.y_startingindexdecreasing

Y

explicit

output

1

Port 4

activation

input

externalActivation

Advanced Properties

NameValueDescription

always active

no

direct-feedthrough

yes

zero-crossing

no

mode

no

continuous-time state

no

discrete-time state

no

See Also