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diff toolboxes/FullBNT-1.0.7/bnt/inference/online/@hmm_2TBN_inf_engine/backT.m @ 0:cc4b1211e677 tip

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initial commit to HG from Changeset: 646 (e263d8a21543) added further path and more save "camirversion.m"
author Daniel Wolff
date Fri, 19 Aug 2016 13:07:06 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/FullBNT-1.0.7/bnt/inference/online/@hmm_2TBN_inf_engine/backT.m	Fri Aug 19 13:07:06 2016 +0200
@@ -0,0 +1,11 @@
+function b = backT(engine, f, t)
+
+b.t = t;
+b.obslik = f.obslik;
+Q = length(f.alpha);
+b.beta = ones(Q,1);
+b.gamma = f.alpha;
+if t > 1
+  bb_t = b.obslik;
+  b.xi = normalise((engine.transprob .* (f.past_alpha * bb_t'))); % T-1,T
+end