mms action

        public function mms($id = null) {
                if (!$this->Zone->exists($id)) {
                        throw new NotFoundException(__('Invalid zone'));
                }
                $options = array('conditions' => array('Zone.' . $this->Zone->primaryKey => $id),'recursive' => 2);
                $this->set('zone', $this->Zone->find('first', $options));
                $zone = $this->Zone->find('first', $options);

                $doctor = 0;
                $hospital_num = 0;
                $population = 0;
                $rate_65 = 0;
                foreach($zone['Region'] as $region){
                        $population += $region['allpopulation'];
                        $rate_65 += $region['rate_population65'];
                        foreach($region['Hospital'] as $hospital){
                                $doctor += $hospital['doctor'];
                                $hospital_num ++;
                        }
                }
                $rate_65 = $rate_65 / count($zone['Region']);
                $lambda = $population * $rate_65 /100 /24;
                $mu = 12 * $doctor / $hospital_num;

                App::import('Vendor', 'MyMMS');
                $mymms = new MyMMS($lambda, $mu, $hospital_num);
                $mms = $mymms->getResult();
                print_r($mymms->getResult());
                $data = array(
                        'id' => $zone['Zone']['id'],
                        'lambda' => $mms['lambda'],
                        'mu' => $mms['mu'],
                        'server' => $mms['s'],
                        'rho' => $mms['row'],
                        'q' => $mms['Q'],
                        'l' => $mms['L'],
                        'w' => $mms['W'],
                        'u' => $mms['U'],
                );
                $this->Zone->save($data);
        }