#include <string>
#include <valarray>
#include <vector>
-#include <hash_map>
#include "Date.hh"
class Data {
public:
Data(int size);
+ Data(int size, double default_value);
Data(std::vector<double> vector_param, plp::Date *date_param);
Data(std::valarray<double> value_arr_param, plp::Date *date_param);
virtual ~Data();