MATRESH

Matrix Reshape

Block Screenshot

Contents

• `Matrix Reshape`_ +

  • Palette
  • Description
  • Dialog box
  • Example
  • Default properties
  • Interfacing function
  • Computational function
  • See also

Palette

• Matrix operation palette

Description

The RESHAPE block changes the dimensions of a matrix or a vector to another dimensions specified by the user in the output size desired parameter.The dimensions of the output must be less or equal to the input size given by the input size parameter.

The equivalent function of this block in Scilab is `matrix`_. (Warning : You have to specify both output dimensions explicitly and don’t use -1 to specify a dimension that must be calculated as in `matrix`_).

Dialog box

• 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 xcos will print the message “Datatype is not supported”. Properties : Type ‘vec’ of size -1.
• input size It indicates the size of the input matrix. Properties : Type ‘vec’ of size -1.
• output size desired It indicates the desired output’s size. Properties : Type ‘vec’ of size -1.

Example

u=[1 2 3 4;5 6 7 8]
When the output desired is [1;6] the output is:
y=[1 2 3 4 5 6]

Default properties

• 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,-2] / 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: mat_reshape

Interfacing function

• SCI/modules/scicos_blocks/macros/MatrixOp/MATRESH.sci

Computational function

• SCI/modules/scicos_blocks/src/c/mat_reshape.c
• SCI/modules/scicos_blocks/src/c/matz_reshape.c

See also

• EXTRACT - Matrix Extractor (xcos Block)
• matrix (Scilab function)