radiobutton metabox passing category to post

Hello everyone,

Is it possible to add category to a post by clicking a radio button? I added to my edit post page a radio metabox, which has 2 choices. I want to add a category to my post based on editors choice. I want to do that so that I can get the rss from a specific category.

code for metabox radiobutton
”name’ => __( ‘Post type’, ‘bvcx’ ),’
”id’ => “{$prefix}radio_post”,’
”type’ => ‘radio’,’
”options’ => array(‘
”radio1′ => __( ‘cat1’, ‘bvcx’ ),’
”radio2′ => __( ‘cat2’, ‘bvcx’ ),’