git-svn-id: file:///home/svn/opt_utilities@171 ed2142bd-67ad-457f-ba7c-d818d4011675

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diff --git a/vmodels/dualgauss1d.hpp b/vmodels/dualgauss1d.hpp
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+/**
+   \file dualgauss1d.hpp
+   \brief Dualgauss model
+   \author Junhua Gu
+ */
+
+#ifndef DUALGAUSS_MODEL_H_
+#define DUALGAUSS_MODEL_H_
+#define OPT_HEADER
+#include <core/fitter.hpp>
+#include <cmath>
+#include <misc/optvec.hpp>
+
+namespace opt_utilities
+{
+  template <typename T>
+  class dualgauss1d
+    :public model<optvec<T>,optvec<T>,optvec<T>,std::string>
+  {
+  private:
+    dualgauss1d* do_clone()const
+    {
+      return new dualgauss1d<T>(*this);
+    }
+
+    const char* do_get_type_name()const
+    {
+      return "1d dualgaussian";
+    }
+  public:
+    dualgauss1d()
+    {
+      this->push_param_info(param_info<optvec<T> >("N1",1));
+      this->push_param_info(param_info<optvec<T> >("x01",0));
+      this->push_param_info(param_info<optvec<T> >("sigma1",1));
+      this->push_param_info(param_info<optvec<T> >("N2",1));
+      this->push_param_info(param_info<optvec<T> >("x02",1));
+      this->push_param_info(param_info<optvec<T> >("sigma2",1));
+    }
+
+  public:
+    optvec<T> do_eval(const optvec<T>& x,const optvec<T>& param)
+    {
+      T N1=get_element(param,0);
+      T x01=get_element(param,1);
+      T sigma1=get_element(param,2);
+      
+      T N2=get_element(param,3);
+      T x02=get_element(param,4);
+      T sigma2=get_element(param,5);
+
+      optvec<T> y1=(x-x01)/sigma1;
+      optvec<T> y2=(x-x02)/sigma2;
+      return N1*exp(-y1*y1/2.)+N2*exp(-y2*y2/2.);
+    }
+
+  private:
+    std::string do_get_information()const
+    {
+      return "";
+    }
+  };
+}
+
+
+
+#endif
+//EOF