is.src

name of subclass. &quot;src&quot; is an abstract
  base class, so you must supply this value. <code>src_</code> is
  automatically prepended to the class name

subclass

<code>src</code> is the standard constructor for srcs and
<code>is.src</code> tests.

internal

A fast, consistent tool for working with data frame like objects,
both in memory and out of memory.

src: Create a "src" object

Description

Usage

Arguments