EXTRACT: Matrix Extractor
The EXTRACT block extracts some elements from the matrix. The size of the output depends on the number of rows and number of columns to extract.
- Datatype (1=real double 2=Complex)
It indicates the type of the output. It support only the two types double (1) and complex (2). If we input another entry in this label Scicos will print the message "Datatype is not supported".
Properties : Type 'vec' of size 1.
- Lines to extract
It indicates the numbers of the lines to extract.
Properties : Type 'mat' of size [1,-1].
- Columns to extract
It indicates the numbers of the columns to extract.
Properties : Type 'mat' of size [1,-1].
A=[1 2 3;4 5 6;7 8 9]
If the "Lines to extract" is 1 and 2 and the "Column to extract" is 1 and 3 then the output is
B=[1 3;4 6]
- always active: no
- direct-feedthrough: yes
- zero-crossing: no
- mode: no
- regular inputs:
- port 1 : size [-1,-2] / type 1
- regular outputs:
- port 1 : size [1,1] / type 1
- number/sizes of activation inputs: 0
- number/sizes of activation outputs: 0
- continuous-time state: no
- discrete-time state: no
- object discrete-time state: no
- name of computational function: extract
- SCI/macros/scicos_blocks/MatrixOp/EXTRACT.sci [view code]
Fady NASSIF INRIA
