It would be nice if, before asking the question, you look for in Google or in SCN spaces.
For example:
https://help.hana.ondemand.com/help/frameset.htm?2cb80530a7a748f792050730782f9bef.html
Data Preview for Analytic View does not work in SAP HANA Cloud trial account
Using HANA Modeler in the SAP HANA Cloud
Have you read this?