WP-PostRatings

The default schema type is 'Article', if you want to change it to 'Recipe', you need to make use of the wp_postratings_schema_itemtype filter as shown in the sample code above.
How To Add Your Site Logo For Google Rich Snippets
<?php
add_filter( 'wp_postratings_site_logo', 'wp_postratings_site_logo' );
function wp_postratings_site_logo( $url ) {
return 'http://placehold.it/350/150.png';
}
?>

By default, the plugin will use your site header image URL as your site logo. If you want to change it, you need to make use of the wp_postratings_site_logo filter as shown in the sample code above.
How To Remove Ratings Image alt and title Text?
<?php
add_filter( 'wp_postratings_ratings_image_alt', 'wp_postratings_ratings_image_alt' );
function wp_postratings_ratings_image_alt( $alt_title_text ) {
return '';
}
?>

By default, the comment author ratings are not displayed. If you want to display the ratings, you need to make use of the wp_postratings_display_comment_author_ratings filter as shown in the sample code above.
How To use PNG images instead of GIF images?
function custom_rating_image_extension() {
return 'png';
}
add_filter( 'wp_postratings_image_extension', 'custom_rating_image_extension' );

The default image extension if 'gif', if you want to change it to 'png', you need to make use of the wp_postratings_image_extension filter as shown in the sample code above.
How To change the cookie expiration time?
function custom_rating_cookie_expiration() {
return strtotime( 'tomorrow' ) ;
}
add_filter( 'wp_postratings_cookie_expiration', 'custom_rating_cookie_expiration', 10, 0 );

The default cookie expiration if 'time() + 30000000', if you want to change the lenght of the experation, you need to make use of the wp_postratings_cookie_expiration filter as shown in the sample code above.
How Does WP-PostRatings Load CSS?

WP-PostRatings will load postratings-css.css from your theme's CSS directory if it exists.
If it doesn't exists, it will just load the default 'postratings-css.css' that comes with WP-PostRatings.
This will allow you to upgrade WP-PostRatings without worrying about overwriting your ratings styles that you have created.

Go to WP-Admin -> Appearance -> Widgets
The widget name is Ratings.

To Display Lowest Rated Post
<?php if (function_exists('get_lowest_rated')): ?>
<ul>
<?php get_lowest_rated(); ?>
</ul>
<?php endif; ?>

Default: get_lowest_rated('both', 0, 10)
The value 'both' will display both the lowest rated posts and pages.
If you want to display the lowest rated posts only, replace 'both' with 'post'.
If you want to display the lowest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 lowest rated posts/pages.

To Display Lowest Rated Post By Tag
<?php if (function_exists('get_lowest_rated_tag')): ?>
<ul>
<?php get_lowest_rated_tag(TAG_ID); ?>
</ul>
<?php endif; ?>

Default: get_lowest_rated_tag(TAG_ID, 'both', 0, 10)
Replace TAG_ID will your tag ID. If you want it to span several categories, replace TAG_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the lowest rated posts and pages.
If you want to display the lowest rated posts only, replace 'both' with 'post'.
If you want to display the lowest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 lowest rated posts/pages.

To Display Lowest Rated Post In A Category
<?php if (function_exists('get_lowest_rated_category')): ?>
<ul>
<?php get_lowest_rated_category(CATEGORY_ID); ?>
</ul>
<?php endif; ?>

Default: get_lowest_rated_category(CATEGORY_ID, 'both', 0, 10)
Replace CATEGORY_ID will your category ID. If you want it to span several categories, replace CATEGORY_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the lowest rated posts and pages.
If you want to display the lowest rated posts only, replace 'both' with 'post'.
If you want to display the lowest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 lowest rated posts/pages.

To Display Highest Rated Post
<?php if (function_exists('get_highest_rated')): ?>
<ul>
<?php get_highest_rated(); ?>
</ul>
<?php endif; ?>

Default: get_highest_rated('both', 0, 10)
The value 'both' will display both the highest rated posts and pages.
If you want to display the highest rated posts only, replace 'both' with 'post'.
If you want to display the highest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 highest rated posts/pages.

To Display Highest Rated Post By Tag
<?php if (function_exists('get_highest_rated_tag')): ?>
<ul>
<?php get_highest_rated_tag(TAG_ID); ?>
</ul>
<?php endif; ?>

Default: get_highest_rated_tag(TAG_ID, 'both', 0, 10)
Replace TAG_ID will your tag ID. If you want it to span several categories, replace TAG_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the highest rated posts and pages.
If you want to display the highest rated posts only, replace 'both' with 'post'.
If you want to display the highest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 highest rated posts/pages.

To Display Highest Rated Post In A Category
<?php if (function_exists('get_highest_rated_category')): ?>
<ul>
<?php get_highest_rated_category(CATEGORY_ID); ?>
</ul>
<?php endif; ?>

Default: get_highest_rated_category(CATEGORY_ID, 'both', 0, 10)
Replace CATEGORY_ID will your category ID. If you want it to span several categories, replace CATEGORY_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the highest rated posts and pages.
If you want to display the highest rated posts only, replace 'both' with 'post'.
If you want to display the highest rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 highest rated posts/pages.

To Display Highest Rated Post Within A Given Period
<?php if (function_exists('get_highest_rated_range')): ?>
<ul>
<?php get_highest_rated_range('1 day'); ?>
</ul>
<?php endif; ?>

Default: get_highest_rated_range('1 day', 'both', 10)
The value '1 day' will be the range that you want. You can use '2 days', '1 month', etc.
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 10 will display only the top 10 most rated posts/pages.

To Display Most Rated Post
<?php if (function_exists('get_most_rated')): ?>
<ul>
<?php get_most_rated(); ?>
</ul>
<?php endif; ?>

Default: get_most_rated('both', 0, 10)
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 most rated posts/pages.

To Display Most Rated Post In A Category
<?php if (function_exists('get_most_rated_category')): ?>
<ul>
<?php get_most_rated_category(CATEGORY_ID); ?>
</ul>
<?php endif; ?>

Default: get_most_rated_category(CATEGORY_ID, 'both', 0, 10)
Replace CATEGORY_ID will your category ID. If you want it to span several categories, replace CATEGORY_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 most rated posts/pages.

To Display Most Rated Post Within A Given Period
<?php if (function_exists('get_most_rated_range')): ?>
<ul>
<?php get_most_rated_range('1 day'); ?>
</ul>
<?php endif; ?>

Default: get_most_rated_range('1 day', 'both', 10)
The value '1 day' will be the range that you want. You can use '2 days', '1 month', etc.
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 10 will display only the top 10 most rated posts/pages.

To Display Highest Score Post
<?php if (function_exists('get_highest_score')): ?>
<ul>
<?php get_highest_score(); ?>
</ul>
<?php endif; ?>

Default: get_highest_score('both', 0, 10)
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 most rated posts/pages.

To Display Highest Score Post In A Category
<?php if (function_exists('get_highest_score_category')): ?>
<ul>
<?php get_highest_score_category(CATEGORY_ID); ?>
</ul>
<?php endif; ?>

Default: get_highest_score_category(CATEGORY_ID, 'both', 0, 10)
Replace CATEGORY_ID will your category ID. If you want it to span several categories, replace CATEGORY_ID with array(1, 2) where 1 and 2 are your categories ID.
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 0 refers to the minimum votes required before the post get shown.
The value 10 will display only the top 10 most rated posts/pages.

To Display Highest Score Post Within A Given Period
<?php if (function_exists('get_highest_score_range')): ?>
<ul>
<?php get_highest_score_range('1 day'); ?>
</ul>
<?php endif; ?>

Default: get_highest_score_range('1 day', 'both', 10)
The value '1 day' will be the range that you want. You can use '2 days', '1 month', etc.
The value 'both' will display both the most rated posts and pages.
If you want to display the most rated posts only, replace 'both' with 'post'.
If you want to display the most rated pages only, replace 'both' with 'page'.
The value 10 will display only the top 10 most rated posts/pages.

To Sort Highest/Lowest Rated Posts

You can use: <?php query_posts( array( 'meta_key' => 'ratings_average', 'orderby' => 'meta_value_num', 'order' => 'DESC' ) ); ?>
Or pass in the variables to the URL: http://yoursite.com/?r_sortby=highest_rated&amp;r_orderby=desc
You can replace desc with asc if you want the lowest rated posts.

To Sort Most/Least Rated Posts

You can use: <?php query_posts( array( 'meta_key' => 'ratings_users', 'orderby' => 'meta_value_num', 'order' => 'DESC' ) ); ?>
Or pass in the variables to the URL: http://yoursite.com/?r_sortby=most_rated&amp;r_orderby=desc
You can replace desc with asc if you want the least rated posts.