Programmer Guide/SPU Reference/ACNV: Difference between revisions

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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"
!In:
!input !!description !!data type !!value type!!default value
|<var>X</var>||input matrix
|-
|-
| ||<var>OP</var>||a number or string; selects operation to be performed
|<var>X</var>||input data ||matrix ||variable
|-
|-
| ||<var>I</var>||optional row or column index
|<var>OP</var>||operation ||number (int.), string||constant
|-
|-
!Out:
|<var>I</var>||index, depends on method ||number or n.c.||variable
|<var>Y</var>||vector or matrix; depends on <var>OP</var> and <var>I</var>
|-
!output !!description !!data type !!value type!!comment
|-
|<var>Y</var>||output data ||vector, matrix ||variable
|}
|}


;Description:
;Description:

Latest revision as of 13:24, 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=0 or column, 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=0 or column, 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=1 or row, 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=1 or row, 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=2 or transpose, I is not used
Ymatrix = XT
See also

<SP-atoms>

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