Get rid of IF statements by using functors

please teach me how to get rid of those if statements by using functors (or any other better methods) inside the following loop:

//Loop over each atom
std::string temp_name ; 
float dst;
for (pdb::pdb_vector:: size_type i=0; i < data.size(); ++i)
{

    if (type == 0) 
    {
        //choose by residue name
        temp_name = data[i].residue_name;
    } else {
        //choose by atom name
        temp_name = data[i].atom_name;
    }
    //compare the name and extract position if matched
    if (temp_name.compare(name) == 0) 
    {
        if (direction.compare("x") == 0)
        {
            dst = ::atof(data[i].x_coord.c_str());              
        } else if ((direction.compare("y") == 0)) {
            dst = ::atof(data[i].y_coord.c_str());                  
        } else {                
            dst = ::atof(data[i].z_coord.c_str());  
        }

    }
}