October 2013
Intermediate to advanced
172 pages
3h 51m
English
Content preview from Getting Started with Greenplum for Big Data AnalyticsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using Weka with Greenplum
As saw seen in Chapter 3, Advanced Analytics – Paradigms, Tools, and Techniques, Weka is a Java-based analytics framework and an alternative to R. As it is a Java-based analytics API, it can connect to any database that supports or has a JDBC driver. Weka comes with a support to a wide range of database and in order to connect to Greenplum, we would need to use the DatabaseUtils.props.postgresql properties file and should be extracted to the HOME directory.
To connect to Postgres/Greenplum from Weka, configure the following properties in the DatabaseUtils.props.postgresql properties file:
jdbcDriver = org.postgresql.Driver jdbcURL= jdbc:postgresql://<<domain>>:<<port>>/<<dbName>>
Weka has an API InstanceQuery that can be ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.