Re: variables of variables, or how is it calle?

[Ben Abbott]

cadu aranha wrote:
> 
> Hi people,
> i would like to create the following structure in octave: A(n),
> where the variable A has different values at different indexes n (n is
> a natural).
> The value A(1) can be a 2x2 matrix whereas A(2) can be a 5x2 matrix.
> Is there a way to create such a thing in octave?
> 
> I my case A(i) is a decay with (x,y) values. I want to handle set of
> decays that
> can have different number of points (different number of lines at A),
> and at each problem i can have a different number of decays A(i) as well.
> 
> Bellow an example. First column is the index i, second x, third y.
> Here I have A(1) and A(2) with respectively 10 and 16 (x,y) data points.
>    1               1            56.016841
>    1               2            53.772628
>    1               3            51.045499
>    1               4            48.842047
>    1               5            45.950329
>    1               6            43.296211
>    1               7            40.710709
>    1               8            37.918308
>    1               9            35.222342
>    1              10            32.622573
>    2               1            140.303195
>    2               2            134.534164
>    2               3            128.325421
>    2               4            121.956538
>    2               5            115.326132
>    2               6            108.597705
>    2               7            101.801594
>    2               8            94.929417
>    2               9            88.119899
>    2              10            81.532634
>    2              11            75.074571
>    2              12            68.796452
>    2              13            62.823703
>    2              14            57.095960
>    2              15            51.758466
>    2              16            46.634026
> 
> Thanks in advance for any tip ...
> 

As Michael indicated, cell-arrays are likely what you're looking for.

Respecting  your 2x2 and 5x2 matrices;

octave:1> A{1} = [1,2;3,4];
octave:2> A{2} = ones(5,2)
A =

{
  [1,1] =

     1   2
     3   4

  [1,2] =

     1   1
     1   1
     1   1
     1   1
     1   1

}

Is that what you needed?
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