private void initJtCpts(FactorGraph mdl, JunctionTree jt) {
for (Iterator it = jt.getVerticesIterator(); it.hasNext(); ) {
VarSet c = (VarSet) it.next();
// DiscreteFactor ptl = createBlankFactor (c);
// jt.setCPF(c, ptl);
jt.setCPF(c, new ConstantFactor(1.0));
}
for (Iterator it = mdl.factors().iterator(); it.hasNext(); ) {
Factor ptl = (Factor) it.next();
VarSet parent = jt.findParentCluster(ptl.varSet());
assert parent != null : "Unable to find parent cluster for ptl " + ptl + "in jt " + jt;
Factor cpf = jt.getCPF(parent);
Factor newCpf = cpf.multiply(ptl);
jt.setCPF(parent, newCpf);
/* debug
if (jt.isNaN()) {
throw new RuntimeException ("Got a NaN");
}
*/
}
}
