Added mathsym+tcc and boost against all advice

eo/contrib/mathsym/regression/ErrorMeasure.h

@@ -0,0 +1,61 @@
+/*	    
+ *             Copyright (C) 2005 Maarten Keijzer
+ *
+ *          This program is free software; you can redistribute it and/or modify
+ *          it under the terms of version 2 of the GNU General Public License as 
+ *          published by the Free Software Foundation. 
+ *
+ *          This program is distributed in the hope that it will be useful,
+ *          but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *          GNU General Public License for more details.
+ *
+ *          You should have received a copy of the GNU General Public License
+ *          along with this program; if not, write to the Free Software
+ *          Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef ERROR_MEASURE_H
+#define ERROR_MEASURE_H
+
+#include "Scaling.h"
+
+class ErrorMeasureImpl;
+class Sym;
+class Dataset;
+
+class ErrorMeasure {
+    
+    ErrorMeasureImpl* pimpl;
+    
+    public :
+
+	enum measure {
+	    absolute,
+	    mean_squared,
+	    mean_squared_scaled,
+	};
+	
+	struct result {
+	    double  error;
+	    Scaling scaling;
+	    
+	    result();
+	    bool valid() const;
+	};
+	
+	ErrorMeasure(const Dataset& data, double train_perc, measure meas = mean_squared);
+	
+	~ErrorMeasure();
+	ErrorMeasure(const ErrorMeasure& that);
+	ErrorMeasure& operator=(const ErrorMeasure& that);
+	
+	result calc_error(Sym sym);
+
+	std::vector<result> calc_error(const std::vector<Sym>& sym);
+	
+	double worst_performance() const;
+};
+
+#endif
+