Changeset 1049 for trunk/yat/classifier

Timestamp:

Feb 7, 2008, 3:50:38 PM (16 years ago)

Author:

Peter

Message:

replaced some cerr outputs with exception throws - refs #189

Location:

trunk/yat/classifier

Files:

• SVM.cc (modified) (5 diffs)
• SVM.h (modified) (1 diff)

trunk/yat/classifier/SVM.cc

@@ -37 +37 @@
 #include <cmath>
 #include <limits>
+#include <sstream>
 #include <stdexcept>
 #include <utility>
@@ -288 +289 @@
     }
     calculate_margin();
-    trained_ = calculate_bias();
+    calculate_bias();
+    trained_ = true;
   }
 
@@ -391 +393 @@
   }
   
-  bool SVM::calculate_bias(void)
+  void SVM::calculate_bias(void)
   {
 
@@ -402 +404 @@
 
     if (!sample_.nof_sv()){
-      std::cerr << "SVM::train() error: " 
-                << "Cannot calculate bias because there is no support vector" 
-                << std::endl;
-      return false;
+      std::stringstream ss;
+      ss << "yat::classifier::SVM::train() error: " 
+         << "Cannot calculate bias because there is no support vector"; 
+      throw std::runtime_error(ss.str());
     }
 
@@ -416 +418 @@
     for (size_t i=0; i<output_.size(); i++) 
       output_(i) += bias_;
-      
-    return true;
   }
 

trunk/yat/classifier/SVM.h

@@ -208 +208 @@
     /// @return true if successful
     ///
-    bool calculate_bias(void);
+    void calculate_bias(void);
 
     ///