1 files changed, 54 insertions, 0 deletions
diff --git a/vmodels/constant.hpp b/vmodels/constant.hpp
new file mode 100644
index 0000000..c4044b0
--- /dev/null
+++ b/vmodels/constant.hpp
@@ -0,0 +1,54 @@
+#ifndef VCONSTANT_MODEL_H_
+#define VCONSTANT_MODEL_H_
+#define OPT_HEADER
+#include <core/fitter.hpp>
+#include <misc/optvec.hpp>
+#include <cmath>
+
+namespace opt_utilities
+{
+  template <typename T>
+  class constant
+    :public model<optvec<T>,optvec<T>,optvec<T>,std::string>
+  {
+    typedef optvec<T> Tv;
+  private:
+    constant<T>* do_clone()const
+    {
+      return new constant<T>(*this);
+    }
+    const char* do_get_type_name()const
+    {
+      return "constant";
+    }
+  public:
+    constant()
+    {
+      this->push_param_info(param_info<Tv>("c",1));
+    }
+
+  public:
+    Tv do_eval(const Tv& x,const Tv& param)
+    {
+      //return x*param[0]+param[1];
+      Tv result(x.size());
+      for(int i=0;i<result.size();++i)
+	{
+	  result[i]=param[0];
+	}
+      return result;
+    }
+
+  private:
+    std::string do_get_information()const
+    {
+      return "Constant\n"
+	"y=C\n";
+    }
+  };
+}
+
+
+
+#endif
+//EOF