- The TeradataAsterR Package - Aster R

Teradata Aster® R User GuideUpdate 3

Aster R
December 2017
Programming Reference
User Guide

The TeradataAsterR package runs on the client system and is designed primarily for data management and exploration.

The TeradataAsterR package includes over 100 functions organized into four functional areas:

  • Utility and database management functions
  • Data exploration and preparation functions
  • R version of all Teradata Aster® Analytics functions

    These functions automate data partitioning and parallel processing across the nodes of the cluster.

  • R script runners

    These runners allow users to run R scripts in the Aster Database, without installing open-source R in the database.

Virtual Objects

The TeradataAsterR package also includes a set of R data objects called virtual objects. Users can use Aster R commands to access and manipulate these virtual objects to access data in the Aster Database. The look and feel is very similar to that of interacting with a regular data frame in R.

For example, Aster R provides an R object called virtual data frame that represents an Aster table, view, or SQL query. Aster R commands that access or manipulate a virtual data frame are translated to equivalent SQL or Teradata Aster SQL-MapReduce® queries and are executed in the Aster Database using RODBC.