Re-arranging huge martix

Hi guys, spent long time trying to figure out how to rearange the matrix that I have, what am having is the following martix
A= [ x1 y1 x2 y2 x3 y3 ; x4 y4 x5 y5 x6 y6]
am trying to arrange my matrix into the following form B = [x1 y1 ; x2 y2 ; x3 y3 ; ....]
my original matrix is (10,1300) am trying to convert it to (6500,2)
i have tried to use for loop but it did not work out
here is my script
A = input('enter mat>');
rowA= size(A,1);
colA= size(A,2);
n=numel(A)/2;
for i=1:1:rowA
for j=1:2:colA-1
B = A(i,[j,j+1])
%continue
end
end
please i need something more efficient and faster than for loops!
Thanks
Morgan

 Réponse acceptée

Jan
Jan le 21 Mar 2012

0 votes

B = transpose(reshape(transpose(A), 2, []));

4 commentaires

Morgan
Morgan le 21 Mar 2012
Thank you Jan
I really apreciate it
Morgan
Image Analyst
Image Analyst le 21 Mar 2012
By the way, a 13000 element array is not huge anymore. A garden variety digital image will be 300 times that size.
Geoff
Geoff le 22 Mar 2012
It's pretty huge, considering you have to type the whole thing in at that prompt. ;-)
Jan
Jan le 22 Mar 2012
You can let the java robot do the typing for you. Then it is small again.

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