Documentation of expandm
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Function Synopsis
MatOut = expandm(MatIn, EXPN)
Help text
EXPAND a Matrix, utility function
This function expands a matrix MatIn in both dimensions.
In the output matrix MatOut each element of MatIn is
repeated as often as defined in EXPN. The size of MatOut is
[EXPN(1)*size(MatIn,1), EXPN(2)*size(MatIn,2)].
This function is used in the GEA Toolbox.
Input parameters:
MatIn - Input Matrix (before expanding)
EXPN - Vector of 2 numbers, how often expand in each
dimensiom
EXPN(1): replicate vertically
EXPN(2): replicate horizontally
Output parameter:
MatOut - Output Matrix (after expanding)
Example:
MatIn = [1 2 3
4 5 6]
EXPN = [1 2] => MatOut = [1 1 2 2 3 3;
4 4 5 5 6 6]
EXPN = [2 1] => MatOut = [1 2 3;
1 2 3;
4 5 6;
4 5 6]
EXPN = [3 2] => MatOut = [1 1 2 2 3 3;
1 1 2 2 3 3;
1 1 2 2 3 3;
4 4 5 5 6 6;
4 4 5 5 6 6;
4 4 5 5 6 6]
See also: repmat
Cross-Reference Information
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This function is called by |
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This document is part of
version 3.8 of the
GEATbx: Genetic and Evolutionary Algorithm Toolbox for use with Matlab -
www.geatbx.com.
The Genetic and Evolutionary Algorithm Toolbox is
not public domain.
© 1994-2006 Hartmut Pohlheim, All Rights Reserved,
(support@geatbx.com).