I am trying to build a system for a project where I am trying to predict the date of the next purchase of a liquefied petroleum gas (LPG) tank by a customer (or customers) based on the schedules/dates of their past/historical purchases. Attached is the data for the historical customer purchases. Any ideas on how to implement this using WEKA's Time Series Analysis? As an Oracle DBA by profession, I have little knowledge on Java. If anyone would want to help, I'd be glad to share the data. Just PM me. Thank you!