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.
|
| 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. |