as.data.frame.CrunchDataFrame

as.data.frame.CrunchDataset

dataset-to-R

part of as.data.frame signature. Ignored.

row.names

optional

logical: actually coerce the dataset to <code>data.frame</code>, or
leave the columns as unevaluated promises. Default is <code>FALSE</code>.

force

additional arguments passed to as.data.frame.default


This method is defined principally so that you can use a CrunchDataset as
a <code>data</code> argument to other R functions (such as
<code><a rd-options="stats" href="/link/lm?package=crunch&version=1.14.4&to=stats" data-mini-rdoc="stats::lm">lm</a></code>). Unless you give it the <code>force==TRUE</code>
argument, this function does not in fact return a <code>data.frame</code>: it
returns an object with an interface like a data.frame, such that you get
R vectors when you access its columns (unlike a CrunchDataset, which
returns CrunchVariable objects). This allows modeling functions that
require select columns of a dataset to retrieve only those variables from
the remote server, rather than pulling the entire dataset into local
memory.


The Crunch.io service <http://crunch.io/> provides a cloud-based
data store and analytic engine, as well as an intuitive web interface.
Using this package, analysts can interact with and manipulate Crunch
datasets from within R. Importantly, this allows technical researchers to
collaborate naturally with team members, managers, and clients who prefer a
point-and-click interface.

Neal Richardson

crunch

Crunch.io Data Tools

dataset-to-R function


This method is defined principally so that you can use a CrunchDataset as
a <code>data</code> argument to other R functions (such as
<code><a rd-options='stats' href='lm'>lm</a></code>). Unless you give it the <code>force==TRUE</code>
argument, this function does not in fact return a <code>data.frame</code>: it
returns an object with an interface like a data.frame, such that you get
R vectors when you access its columns (unlike a CrunchDataset, which
returns CrunchVariable objects). This allows modeling functions that
require select columns of a dataset to retrieve only those variables from
the remote server, rather than pulling the entire dataset into local
memory.


dataset-to-R: as.data.frame method for CrunchDataset

Description

Usage

Arguments

Value