i used from repo one simple plugin (GA Google Analytics) to just add the code, the link it’s here
Set up content experiments in Google Analytics directly from your WordPress website using the Google Analyticator Experiments plug-in which can be used to splittest content on your website.
For the plugin the link.
use of google analytics 🙂
on the desktop version 🙂
if you are using google analytics for websites this may help you if you wanna try using Custom API Dashboards – No Code Required
Using Google Analytics for details about your site may offer all info you need regarding your visitors, a more in detail info may be found from In-Page Analytics