Inserting an array in another to make an Nested Array

Hello I want to build a fractal. I want to start with One=[1 0 1;0 0 0;1 0 1] Zero=zeros(3)

Then I want to search this array for an element =1 if equal to "1" insert the array One otherwise the array Zero. I am pretty sure this can be done with Cat but wanted to see what others think.

Thanks for your time.

[James Tursa]

Please provide a complete example of inputs and desired output. "insert the array" really doesn't tell us much about what you really want.

[thiirane]

Hmmm. OK let me try again. My generator array is called "One" One= [1 0 1;0 0 0;1 0 1];

The next level fractal is where One is inserted in every element of "One" where "1" exists. If the element contains a "0" then the array Zero is inserted into One. Zero=zero(3); I am simply looking for a simple way to nest One and Zero into my generator array.

Answer 1

[Guillaume]

C = {zeros(3); [1 0 1; 0 0 0; 1 0 1]};
X = [1 1 0; 0 1 0]; %current matrix

X = cell2mat(C(X+1)) %new matrix

[thiirane]

Can you help me understand how cell2mat used in this way works? How does cell2mat interpret C(X+1)?

[Guillaume]

It's fairly basic indexing, Y = C(X) returns an array Y the size of X (*) where each element Yn is the value of C at index Xn.

Therefore, in C(X+1), when Xn == 0, Yn is C(1) and when Xn == 1, Yn is C(2).

* except under some circumstances (both are vectors) because people at Mathworks love having exceptions which we all know makes generic programming so much easier. /end rant

Answer 2

[Roger Stafford]

   ONE = [1 0 1;0 0 0;1 0 1];
   M = (your current matrix of 1's and 0's)
   M = kron(M,ONE);  % This will be the next version of M

[thiirane]

This works too. Thanks