7.00.02.01 - Exploring Data - Aster R

Teradata Aster® R User GuideUpdate 3

prodname
Aster R
vrm_release
7.00.02.01
created_date
December 2017
category
Programming Reference
User Guide
featnum
B700-1033-700K

Aster R provides functions to explore virtual data frames.

This table lists brief descriptions of some of these functions.

Function Description
ta.head() Returns the first 6 rows of the virtual data frame.
ta.tail() Returns the last 6 rows of the virtual data frame.
ta.show() Returns all rows of the virtual data frame.
ta.dim() Returns a numeric vector (number of rows, number of columns) showing the dimensions of the virtual data frame.
ta.length() Returns the length of the virtual object.
  • For objects of class ta.vector or ta.factor, the length is the number of rows.
  • For objects of class ta.data.frame, the length is the number of columns.
  • For objects of class ta.list, the length is the number of elements.
ta.names() Returns the names attribute of the virtual data frame as a character vector.
ta.ncol() Returns the number of columns of the virtual data frame.
ta.nrow() Returns the number of rows of the virtual data frame.
ta.colnames() Can be used to return or alter the column names of the virtual data frame.
ta.dimnames() Returns a character vector with the dimension names.