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reshape2matrix.m v1.0 (Oct 2009)

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reshape2matrix.m v1.0 (Oct 2009)

by Carlos Adrian Vargas Aguilera

 

02 Oct 2009

Reshapes a multidimensional array into a 2-D matrix with an specific dimension in the columns!

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Description

SYNTAX:
a) N-dim array X to matrix Y:
>> Y = reshape2matrix(X,DIM);
b) Matrix Y to N-dim array X:
>> X = reshape2matrix(Y,DIM,SIZE);

DESCRIPTION:
Some MATLAB or users defined functions do not work through an specific dimension in a multidimensional array, whether because its not supported like in FILTFILT or the output is a matrix like in CORRCOEF.

A workaround on this problem is to specify the elements of X in the specific dimension we like to work (DIM) with some index. Another one is to transform this multidimensional array into a simple 2-dimensional matrix with the vectors of the DIM dimension as its columns.

This latter is exactly what this little program does. Besides, after working with the generated matrix, you can get the original multidimensional shape by calling once again this function with the third input SIZE of the original array.

Enjoy it!
Any comments and bug reports will be very appreciated!

Acknowledgements
This submission has inspired the following:
DimFunc
MATLAB release MATLAB 7.7 (R2008b)
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Tag Applied By Date/Time
reshape Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:42
size Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43
ipermute Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43
permute Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43
matrix Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43
first nonsingleton Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43
dim Carlos Adrian Vargas Aguilera 05 Oct 2009 11:06:43

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