By default, when I type a struct name in the Octave interpreter, the whole data are printed on the screen. In Matlab, instead, a more compact view are presented, which I find better, spacially when the structure contains lots of data. For example, in Octave:

a.b=rand(3)
a =

  scalar structure containing the fields:

    b =

       0.67762   0.51557   0.54159
       0.76057   0.18973   0.99633
       0.34420   0.54200   0.40013

But in Matlab:

 a.b=rand(3)

a =

    b: [3x3 double]

I suggest a behavior like the Matlab one for Octave 4.0