is.online

Returns TRUE if the p3m URL can be accessed.

Makes it possible to create an internally consistent
repository consisting of selected packages from CRAN-like repositories.
The user specifies a set of desired packages, and 'miniCRAN' recursively
reads the dependency tree for these packages, then downloads only this
subset. The user can then install packages from this repository directly,
rather than from CRAN.  This is useful in production settings, e.g. server
behind a firewall, or remote locations with slow (or zero) Internet access.

Andrie Vries

miniCRAN

Create a Mini Version of CRAN Containing Only Selected Packages

Andrie de Vries

Alex Chubaty

Microsoft Corporation 

is.online function

<dl><dt>url</dt>
<dd>p3m url</dd>
<dt>tryHttp</dt>
<dd>If TRUE, also attempts http URL, for compatibility with older versions of R</dd></dl>

Arguments

Returns TRUE if the p3m URL can be accessed. — is.online

<dl>

<dt>url</dt>
<dd>p3m url</dd>


<dt>tryHttp</dt>
<dd>If TRUE, also attempts http URL, for compatibility with older versions of R</dd>

</dl>

is.online: Returns TRUE if the p3m URL can be accessed.

Description

Usage

Arguments