Bayesian Rating System Problem

[tommyda]

Here is my query.

 

<?php
$query = mysql_query("

SELECT
typeid,
(select count(typeid) from ratings) / (select count(distinct typeid) FROM ratings) AS avg_num_votes,
(select avg(rating) from ratings) AS avg_rating,
count(typeid) as this_num_votes,
avg(rating) as this_rating
FROM
ratings
GROUP BY typeid


")or die(mysql_error());

?>

 

Im getting this error:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'select typeid, ((avg_num_votes * avg_rating) + (this_num_votes * this_rating) / ' at line 10

[fenway]

What version?