How to enable Salesforce Wave functionality in dev org?

Try this link :  https://nextgensalesforce.wordpress.com/2015/09/28/creating-your-very-own-salesforce-wave-application/

Hi,

• As first steps you need to sign up for a WAVE development org.
• You can register for your very own WAVE developer Org here
• Now click on the link – https://startsurfingthewave.herokuapp.com/actions/enablement
• You’ll have to sign in into the developer org created in Step 1 and click Allow.
•  Click on Go to My Org
•  Click on Enable Analytics
• On the Previous Page click on Verify Setup and Assign Permissions
• Once this setup is complete, you’ll see Analytics in the App picker. If you don’t refresh your page.
• Select Analytics.

You might want your users to be able to download the results of an exploration. With downloaded explorations, users can save a snapshot in time, compare with other explorations, or manipulate the data in some other tool.

Users can download the results from lens explorations and dashboard widgets as images (.png), Microsoft® Excel® (.xls), or comma-separated values (.csv) files.

Assign users a permission set that includes Download Analytics Data. Users with the permission see download options when they select Download from a dashboard widget.

To set up users to download data from Analytics, complete the following steps.

From Setup, enter Permission Sets in the Quick Find box, then select Permission Sets.
Select the Analytics permission set where you want to add the permission, and then select System Permissions.
Click Edit, then select Download Analytics Data, if it’s not already selected.
Click Save.
Sometimes you want to prevent users from downloading Analytics exploration results. When you do, remove the permission from those users.

Hope this helps.