I am using the accordion directive from http://angular-ui.github.com/bootstrap/ and I need to have more control over when the accordions open and close.
There is the is-open attribute on the accordion-group which points to a bindable expression. By using this expression you can control accordion items programatically, ex.:
{{group.content}}
and the working plunk here: http://plnkr.co/edit/DepnVH?p=preview