.requireNamespace

This provides a standard message format for missing packages, e.g.,
detected via <code>requireNamespace</code>.

A collection of high-level, machine- and OS-independent tools
for making reproducible and reusable content in R.
The two workhorse functions are Cache() and prepInputs(). Cache()
allows for nested caching, is robust to environments and objects with
environments (like functions), and deals with some classes of
file-backed R objects e.g., from terra and raster packages.
Both functions have been developed to
be foundational components of data retrieval
and processing in continuous workflow situations. In both functions,
efforts are made to make the first and subsequent calls of functions have
the same result, but faster at subsequent times by way of checksums
and digesting. Several features are still under development, including
cloud storage of cached objects allowing for sharing between users. Several
advanced options are available, see ?reproducibleOptions().

Eliot J B

reproducible

Enhance Reproducibility of R Code

Eliot J B McIntire

Alex M Chubaty

Tati Micheletti

Ceres Barros

Ian Eddy

His Majesty the King in Right of Canada, as represented by the Minister of Natural Resources Canada 

.requireNamespace function

<dl><dt>pkg</dt>
<dd>Character string indicating name of package required</dd>
<dt>minVersion</dt>
<dd>Character string indicating minimum version of package
that is needed</dd>
<dt>stopOnFALSE</dt>
<dd>Logical. If <code>TRUE</code>, this function will create an
error (i.e., <code>stop</code>) if the function returns <code>FALSE</code>; otherwise
it simply returns <code>FALSE</code></dd>
<dt>messageStart</dt>
<dd>A character string with a prefix of message to provide</dd></dl>

Arguments

Provide standard messaging for missing package dependencies — .requireNamespace

<dl>

<dt>pkg</dt>
<dd>Character string indicating name of package required</dd>


<dt>minVersion</dt>
<dd>Character string indicating minimum version of package
that is needed</dd>


<dt>stopOnFALSE</dt>
<dd>Logical. If <code>TRUE</code>, this function will create an
error (i.e., <code>stop</code>) if the function returns <code>FALSE</code>; otherwise
it simply returns <code>FALSE</code></dd>


<dt>messageStart</dt>
<dd>A character string with a prefix of message to provide</dd>

</dl>

.requireNamespace: Provide standard messaging for missing package dependencies

Description

Usage

Value

Arguments