function obslik = mk_hmm_obs_lik_vec(engine, evidence)% P(o1,o2| h) = P(o1|h) * P(o2|h) where h = Q1,Q2,...bnet = bnet_from_engine(engine);ss = length(bnet.intra);onodes = bnet.observed;hnodes = mysetdiff(1:ss, onodes);ns = bnet.node_sizes(:);ns(onodes) = 1;Q = length(engine.startprob);obslik = ones(Q, 1);for i=1:length(onodes)  o = onodes(i);  %data = cell2num(evidence(o,1));  data = evidence{o,1};  if myismember(o, bnet.dnodes)    obslik_i = eval_pdf_cond_multinomial(data, engine.obsprob{i}.CPT);  else    if bnet.auto_regressive(o)      error('can''t handle AR nodes')    end    %% calling mk_ghmm_obs_lik, which calls gaussian_prob, is slow, so we inline it    %% and use the pre-computed  inverse matrix    %obslik_i = mk_ghmm_obs_lik(data, engine.obsprob{i}.mu, engine.obsprob{i}.Sigma);    x = data(:);    m = engine.obsprob{i}.mu;    Qi = size(m, 2);    obslik_i = size(Qi, 1);    invC = engine.obsprob{i}.inv_Sigma;    denom = engine.obsprob{i}.denom;    for j=1:Qi      numer = exp(-0.5 * (x-m(:,j))' * invC(:,:,j) * (x-m(:,j)));      obslik_i(j) = numer / denom(j);    end  end  % convert P(o|ps) into P(o|h) by multiplying onto a (h,o) potential of all 1s  ps = bnet.parents{o};  dom = [ps o];  obspot_i = dpot(dom, ns(dom), obslik_i);  dom = [hnodes o];  obspot = dpot(dom, ns(dom));  obspot = multiply_by_pot(obspot, obspot_i);  % compute p(oi|h) * p(oj|h)  S = struct(obspot);  obslik = obslik .* S.T(:);end