add a randomize function

packages/CLPBN/horus/Factor.h

@@ -35,6 +35,13 @@ class TFactor
 
     void normalize (void) { LogAware::normalize (params_); }
   
+    void randomize (void)
+    {
+      for (size_t i = 0; i < params_.size(); ++i) {
+        params_[i] = (double) std::rand() / RAND_MAX;
+      }
+    }
+
     void setParams (const Params& newParams)
     {
       params_ = newParams;