text: #ifndef RDA_FUNCTIONS_H__
  #define RDA_FUNCTIONS_H__
  #include <string>
  #include "dna_sequence.h"
  #include "nw_model_parameters.h"
  
  nw_model_parameters_ptr load_parameters_from_file( std::string filename );
  nw_model_parameters_ptr estimate_parameters( dna_sequence_ptr_vector &sequences, double d, double a, double L);
  #endif
  