Programmer Guide/SPU Reference/ACNV: Difference between revisions
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::<var>OP</var>=<code>0</code> or <code>column</code>, <var>I</var> is not connected | ::<var>OP</var>=<code>0</code> or <code>column</code>, <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>[*,''t''] | ||
::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 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. | ||
:;extract specified column: | :;extract specified column: | ||
::<var>OP</var>=<code>0</code> or <code>column</code>, <code>0</code>≤<var>I</var><number of input columns | ::<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>] | :::<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,. | ::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 --> | ||
Revision as of 11:13, 6 May 2011
Special matrix operations.
[SPU ACNV X OP I OUT Y]
| In: | X | input matrix |
|---|---|---|
| OP | a number or string; selects operation to be performed | |
| I | optional row or column index | |
| Out: | Y | vector or matrix; depends on OP and I |
- 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>
