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 R with Greenplum
In Chapter 3, Advanced Analytics – Paradigms, Tools, and Techniques, we were introduced to R programming. R is a very powerful programming language that has many built-in libraries for running statistical and analytical calculation or modeling. In this section, we will learn how R functions can be integrated to work with data in Greenplum. There are many ways in which we can run R on the data from Greenplum and we will now discuss on the following two important approaches:
- R with standard DBI connector to Greenplum; in this case, R program connects to Postgres/Greenplum database, loads data into R client
- PL/R—procedural language for SQL calls to R functions
DBI Connector for R
From R program, we can access Postgres or Greenplum ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.