variables of variables, or how is it calle?

[oxyopes]

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 ...