I use the [calendar][1] module and the views come with it.

What i want is: when my URL is "`http:mysite/2015`" display the year view and when my URL is "`http:mysite/2015/03`" display the month view (March of 2015). Of course the day same as well "`http:mysite/2015/03/16`".

I try to change the path and contextual filters setting but i cant do it.
I'm sure it is a simple thing but i cant find the answer yet.


  [1]: https://www.drupal.org/project/calendar