how to create a statistics system in codeigniter

Hi everybody.
I am a beginner in programming and work with codeigniter, i want to create a statistics system (professional system or at least, not simple) for website with codeigniter but i don't know how i can make it.
if you have ideas or plugins for codeigniter, I'll really appreciate if you share it with me and other users.

sorry for my bad English. :\

You can learn codeigniter from the best tutorials available online you can check this at http://letsfindcourse.com/codeIgniter hope this will help you.