Programmer Guide/SPU Reference/ACNV: Difference between revisions
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(Created page with '{{DISPLAYTITLE:{{SUBPAGENAME}}}} Special matrix operations. ==<code>[SPU ACNV <var>X OP I</var> OUT <var>Y</var>]</code>== {|class="einrahmen" !In: |<var>X</var>||input matrix |-…') |
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==<code>[SPU ACNV <var>X OP I</var> OUT <var>Y</var>]</code>== | ==<code>[SPU ACNV <var>X OP I</var> OUT <var>Y</var>]</code>== | ||
{|class="einrahmen" | {|class="einrahmen" | ||
! | !input !!description !!data type !!value type!!default value | ||
|- | |- | ||
|<var>X</var>||input data ||matrix ||variable | |||
|- | |- | ||
|<var>OP</var>||operation ||number (int.), string||constant | |||
|- | |- | ||
|<var>I</var>||index, depends on method ||number or n.c.||variable | |||
|<var> | |- | ||
!output !!description !!data type !!value type!!comment | |||
|- | |||
|<var>Y</var>||output data ||vector, matrix ||variable | |||
|} | |} | ||
;Description: | ;Description: | ||
:;extract columns: | :;extract columns: | ||
::<var>OP</var>=<code>0</code> or <code>column</code> | ::<var>OP</var>=<code>0</code> or <code>column</code>, <var>I</var> is not connected | ||
::<var>I</var> is not connected | :::<var>Y<sub>vector</sub></var> = <var>X</var>[*,''t''] | ||
::<var>Y<sub>vector</sub></var> = <var>X</var>[ | ::In the evaluation cycle ''t'' (≥0), the column ''t'' of matrix <var>X</var> is copied to the output vector <var>Y</var>. The length of the output vector is equal to the number of input rows. | ||
::In the evaluation cycle ''t'' (≥0), the | :;extract specified column: | ||
::<var>OP</var>=<code>0</code> or <code>column</code>, <code>0</code>≤<var>I</var><number of input columns | |||
:::<var>Y<sub>vector</sub></var> = <var>X</var>[*,<var>I</var>] | |||
::In each evaluation cycle, the column <var>I</var> of matrix <var>X</var> is copied to the output vector <var>Y</var>. The length of the output vector is equal to the number of input rows. | |||
:;extract rows: | |||
::<var>OP</var>=<code>1</code> or <code>row</code>, <var>I</var> is not connected | |||
:::<var>Y<sub>vector</sub></var> = <var>X</var>[''t'',*] | |||
::In the evaluation cycle ''t'' (≥0), the row ''t'' of matrix <var>X</var> is copied to the output vector <var>Y</var>. The length of the output vector is equal to the number of input columns. | |||
:;extract specified row: | |||
::<var>OP</var>=<code>1</code> or <code>row</code>, <code>0</code>≤<var>I</var><number of input rows | |||
:::<var>Y<sub>vector</sub></var> = <var>X</var>[<var>I</var>,*] | |||
::In each evaluation cycle, the row <var>I</var> of matrix <var>X</var> is copied to the output vector <var>Y</var>. The length of the output vector is equal to the number of input columns. | |||
:;transpose: | |||
::<var>OP</var>=<code>2</code> or <code>transpose</code>, <var>I</var> is not used | |||
:::<var>Y<sub>matrix</sub></var> = <var>X</var><sup>T</sup> | |||
;See also: | ;See also: | ||
<[[../#Signal Processing Atoms|SP-atoms]]> | <[[../#Signal Processing Atoms|SP-atoms]]> | ||
<!-- AN, 2.5.2011 --> | <!-- AN, 2.5.2011 --> | ||
Latest revision as of 12:24, 6 May 2011
Special matrix operations.
[SPU ACNV X OP I OUT Y]
| input | description | data type | value type | default value |
|---|---|---|---|---|
| X | input data | matrix | variable | |
| OP | operation | number (int.), string | constant | |
| I | index, depends on method | number or n.c. | variable | |
| output | description | data type | value type | comment |
| Y | output data | vector, matrix | variable |
- Description
-
- extract columns
- OP=
0orcolumn, I is not connected- Yvector = X[*,t]
- In the evaluation cycle t (≥0), the column t of matrix X is copied to the output vector Y. The length of the output vector is equal to the number of input rows.
- extract specified column
- OP=
0orcolumn,0≤I<number of input columns- Yvector = X[*,I]
- In each evaluation cycle, the column I of matrix X is copied to the output vector Y. The length of the output vector is equal to the number of input rows.
- extract rows
- OP=
1orrow, I is not connected- Yvector = X[t,*]
- In the evaluation cycle t (≥0), the row t of matrix X is copied to the output vector Y. The length of the output vector is equal to the number of input columns.
- extract specified row
- OP=
1orrow,0≤I<number of input rows- Yvector = X[I,*]
- In each evaluation cycle, the row I of matrix X is copied to the output vector Y. The length of the output vector is equal to the number of input columns.
- transpose
- OP=
2ortranspose, I is not used- Ymatrix = XT
- See also
<SP-atoms>
