I haven’t given the database parameters settings for Analytical and Prediction engine 7.1while installation.

How can I set them up after installation ?

Thanks.

This is well documented in the following guide on advantage.

webMethods Central Configuration and Deployment Guide 7.1

log into Mywebmethods as administrator, choose Administration–>System-Wide–> Databasepool Configuration.

1. create this database pool first. Then Define Environments, in that you have a tab called map DB pools there you can map your analytics Engine,Prediction Engine…
   Hope this works for you.

Thanks,
Vijay