I have followed steps in trail head and created an Wave Analytics account. I've also added permissions to the profiles & user.
Now, I can access Wave Analytics App in the Desktop. How can I view the Wave Analytics App in the Salesforce1 Mobile App?
Well, if you have gone thru this Wave Mobile Exploration Trailhead module, you will notice that Wave Analytics App is a different mobile app from Salesforce1 mobile App.
You can install the Wave Analytics mobile app from app store