4-D Array

[Carlo de Falco]

Hi,
I am trying to create a 4D NDArray (3x3x3x3) from within
an oct-file but I don't understand how dim_vector works,
I tried the following but it crashes Octave:

  dim_vector a (4);
  a(0)=3;a(1)=3;a(2)=3;a(3)=3;
  NDArray b (a);

with the error:

../liboctave/dim-vector.h:113: failed assertion `i >= 0 && i < ndims'

any help appreciated,
c.