i am new to code igniter i am not able to resolve this problem please help me below code is in

select.php in model

//     update for selected data
public function update_analytics_id1()
    {
    $this->db->where('google_analytics', $id);
    $this->db->update('seo', $data);

}

public function show_all_analytics(){
    $query = $this->db->get('seo');
    $query_result = $query->result();
    return $query_result;
}
//single data fetch
public function show_single_id{
    this->db->select('*');
    $this->db->from('seo');
    $this->db->where('google_analytics', $data);
    $query = $this->db->get();
    $result = $query->result();
    return $result;

}

user_authentication.php is controller

 public function update(){  
    $id= $this->input->post('did');
    $data = array('a_analytics' =>$this->input->post('analytics') );
    $this->load->model('select');
                  //update query
    $this->select->update_analytics_id1($id,$data);
    $this->show_analytics_id();
}

public function show_analytics_id(){
    $this->load->model('select');
    $id = $this->uri->segment(2);
    $data['seo'] = $this->select->show_all_analytics();
    $data['single_entry'] = $this->select->show_single_id($id);
    $this->load->view('showdata', $data);
}

showdata is my view page

 

        
        
    

        

            
            GOOGLE ANALYTICS
                                   <?php echo $seo->google_analytics; ?>                    
                
            
        
  
    
   

*when ever i try to run il get A PHP Error was encountered

Severity: Notice

Message: Undefined variable: seo

Filename: views/showdata.php

Line Number: 4

Backtrace:*