dataEdit-class: Reference Class for Editing Data Table Objects

Description Fields Methods

Description

A subclass of dataTable-class objects, in which elements in a column can be edited by supplying new values for a range of rows, and the edits can be undone.

Fields

edits

A list that keeps account of the edits performed.

description

A character string with a description of the edit project.

Methods

edit(i, var, value)

Replaces the range i in the variable named var in the object by value.

initialize(..., data = data.frame())

This method takes data= as a named argument, but coerces it to be an environment, instead of requiring that it already be one.

undo()

Undoes the last edit() operation and updates the edits field accordingly.


johnmchambers/XRexamples documentation built on May 18, 2017, 5:09 a.m.