I wanna assign NULL ARRAY inside of Struct

[TAISO, Renpoo]

Hi there.
I have a question on using Struct in octave.
Would you look at these codes?

I wanna AUTOMATICALLY set up the Struct containing both integers and NULL ARRAYs for the returning values for a function, to define each variables from the Struct.

results = struct(            ...
    'resultData', {},  ... % result 1
    'timeAxis',   {},  ... % result 2
    'maxValues',  {},  ... % result 3
    'maxIdxs',    {},  ... % result 4
    'maxTimes',   {},  ... % result 5
    'zeroIdxs',   {},  ... % result 6
    'ICCC',        0,  ... % result 7
    'tauICCC',     0,  ... % result 8
    'Wiccc',       0,  ... % result 9
    'PHI_ll_0',    0,  ... % result 10
    'PHI_rr_0',    0,  ... % result 11
    'PHI_lr',     {},  ... % result 12
    'phi_lr',     {});     % result 13
results_fields = fieldnames(results);
nargin = 13;
for i = 1:nargin,
  if ( isnumeric( getfield( results, results_fields{i}, {2} ) ) ),
    results.( results_fields{i} ) = eval( num2str( results.( results_fields{i} ) ) );
  else,
    results.( results_fields{i} ) = eval( results.( results_fields{i} ) );
  endif;
endfor;

1st. problem is "isnumeric( getfield( results, results_fields{i}, {2} ) ) ".
I wanna identify whether or not it is numeric for the value field of the Struct "results".

2nd. problem is "eval( results.( results_fields{i} ) );" in case that I wanna assign NULL ARRAY inside of the Struct "results".


What should I do to refactor these codes?
Thanks in advance.

Renpoo