Mauch MIREX 2010

function T = convert_CPD_to_table_hidden_ps(CPD, child_obs)

% CONVERT_CPD_TO_TABLE_HIDDEN_PS Convert a discrete CPD to a table

% T = convert_CPD_to_table_hidden_ps(CPD, child_obs)

%

% This is like convert_to_table, except that we are guaranteed that

% none of the parents have evidence on them.

% child_obs may be an integer (1,2,...) or [].

CPT = CPD_to_CPT(CPD);

if isempty(child_obs)

  T = CPT(:);

else

  sz = dom_sizes(CPD);

  if length(sz)==1 % no parents

    T = CPT(child_obs);

  else

    CPT = reshape(CPT, prod(sz(1:end-1)), sz(end));

    T = CPT(:, child_obs);

  end

end