$t=Array();
   if (count($hits)%2!=0) {
      $_p_num=round(count($hits)/2, 0)-count($hits)%2;
      for ($i=$_p_num-($_p_num*2);$i<=$_p_num;$i++) {
         $t[]=$i;
      }
   } else {
      $_p_num=count($hits)/2;
      for ($i=$_p_num-($_p_num*2);$i<=$_p_num;$i++) {
         if ($i==0) continue;
         $t[]=$i;
      }   
   }

   $t_sqr=Array();
   foreach ($t as $k => $v) { $t_sqr[] = $v*$v; }
   
   $ty=Array();
   foreach ($t as $k => $v) { $ty[] = $v*$hits[$k]; }
   
   $a0=0; foreach ($hits as $k => $v) { $a0+=$v; }
   $a0=$a0/(count($hits));

   $a1=0; foreach ($ty as $k => $v) { $a1+=$v; }
   $an=0; foreach ($t_sqr as $k => $v) { $an+=$v; }
   $a1=$a1/$an; unset($an);
   
   $hits_t=Array();
   foreach ($t as $k => $v) {
      $hits_t[] = round($a0+$a1*$v);
   }