Re: Assigning matrices to structures and indexing

[Tom Holroyd]

> I'm having trouble implementing the following
> lines in Octave 2.1.70 in Windows). They work in MATLAB .
>
> [G.B(k,:,m),G.A(k,:,m)] = ss2tf(G.ss.A,G.ss.B,G.ss.C(m,:),G.ss.D(m,:),k);

Or to put it more simply,

octave:7> A(1,:,2) = 4
A =

ans(:,:,1) = 0
ans(:,:,2) = 4

octave:8> A(1,:,2) = [4,5]
error: A(IDX-LIST) = X: X must be a scalar or size of X must 
equal number of elements indexed by IDX-LIST
error: assignment failed, or no method for `matrix = matrix'
error: evaluating assignment expression near line 8, column 10

If you preallocate the array it'll work:

octave:8> B = zeros(1,2,2);
octave:9> B(1,:,2) = [4,5]
B =

ans(:,:,1) =

  0  0

ans(:,:,2) =

  4  5


Dr. Tom Holroyd
"A man of genius makes no mistakes. His errors are volitional and
are the portals of discovery." -- James Joyce



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