--- Viterbi-feb27.java	Thu Feb 27 13:27:25 2003
+++ Viterbi.java	Fri Feb 28 12:26:44 2003
@@ -284,7 +284,7 @@
 			    c = link_maximum;
 			}
 			drawLink(g, i, y0, y1, c);
-			if (c == link_maximum) {
+			if (c == link_maximum && 0 < i) {
 			    double transprob = hmm.states.get(y0).transprob(hmm.states.get(y1));
 			    drawCenterString(g, form.format(transprob),
 					     offset_x + i*grid_x + grid_x/2, offset_ymax);
@@ -445,9 +445,12 @@
 	DecimalFormat form = new DecimalFormat("0.0000");
 	status = "Prob:" + form.format(prob);
 
-	double transprob = s0.transprob(s1);
-	prob = prob * transprob;
-	status = status + " x " + form.format(transprob);
+	if (1 < stage) {
+	    // skip first stage.
+	    double transprob = s0.transprob(s1);
+	    prob = prob * transprob;
+	    status = status + " x " + form.format(transprob);
+	}
 
 	double emitprob = s1.emitprob(sym1);
 	prob = prob * emitprob;