Jordan
Posts:
4
Registered:
1/22/12


Replicating an array into a 3D layered matrix  Help please!
Posted:
Jan 14, 2013 4:34 PM


Hi all. I'm struggling with some coding and can't seem to figure it out. I'd prefer to do this without forloops.
I have a vector of length N. For now, let's say it's length 3: [A,B,C]'
I want to replicate this into a layered matrix size (2,2,N), so for this case (2,2,3).
I want the first layer (:,:,1) to look like this: [A,A; A,A]
The second layer (:,:,2) to look like this: [B,B; B,B]
The third layer (:,:,3) to look like this: [C,C; C,C]
And so on, through N.
So basically I want to take a vector of N ingredients and make a cake with N tiers, each tier being 2x2 and consisting of only one corresponding ingredient from (1:N). Hope that makes sense.
Any suggestions? I'm sure this can probably be done through repmat() somehow, but I can't figure it out. Thanks in advance!

