opts_data.frame {constructive}

Constructive options for class 'data.frame'

Description

These options will be used on objects of class 'data.frame'.

Usage

opts_data.frame(
  constructor = c("data.frame", "read.table", "next", "list"),
  ...
)

Arguments

constructor

String. Name of the function used to construct the object, see Details section.

...

Additional options used by user defined constructors through the opts object

Details

Depending on constructor, we construct the object as follows:

• "data.frame" (default): Wrap the column definitions in a data.frame() call. If some columns are lists or data frames, we wrap the column definitions in tibble::tibble(). then use as.data.frame().

• "read.table" : We build the object using read.table() if possible, or fall back to data.frame().

• "next" : Use the constructor for the next supported class. Call .class2() on the object to see in which order the methods will be tried.

• "list" : Use list() and treat the class as a regular attribute.

Value

An object of class <constructive_options/constructive_options_data.frame>