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-rw-r--r--sourcecodes/bnt-master/HMM/mc_sample.m17
1 files changed, 17 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/HMM/mc_sample.m b/sourcecodes/bnt-master/HMM/mc_sample.m
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+function S = mc_sample(prior, trans, len, numex)
+% SAMPLE_MC Generate random sequences from a Markov chain.
+% STATE = SAMPLE_MC(PRIOR, TRANS, LEN) generates a sequence of length LEN.
+%
+% STATE = SAMPLE_MC(PRIOR, TRANS, LEN, N) generates N rows each of length LEN.
+
+if nargin==3
+  numex = 1;
+end
+
+S = zeros(numex,len);
+for i=1:numex
+  S(i, 1) = sample_discrete(prior);
+  for t=2:len
+    S(i, t) = sample_discrete(trans(S(i,t-1),:));
+  end
+end