is_upstream

Test upstream - downstream relationship

A new metric named 'dependency heaviness' is proposed that measures the number
of additional dependency packages that a parent package brings to its child package
and are unique to the dependency packages imported by all other parents.
The dependency heaviness analysis is visualized by a customized heatmap.
The package is described in <doi:10.1093/bioinformatics/btac449>. We have also performed
the dependency heaviness analysis on the CRAN/Bioconductor package ecosystem and the results
are implemented as a web-based database which provides comprehensive tools for
querying dependencies of individual R packages.

Zuguang Gu

pkgndep

Analyze Dependency Heaviness of R Packages

is_upstream function

<dl>
 <dt>upstream</dt>
<dd>A vector of package names.</dd> <dt>package</dt>
<dd>A single package name.</dd> <dt>...</dt>
<dd>Pass to <code>upstream_dependency</code>.</dd>
</dl>

Arguments

Test upstream - downstream relationship — is_upstream

<dl>


 <dt>upstream</dt>
<dd>A vector of package names.</dd>

 <dt>package</dt>
<dd>A single package name.</dd>

 <dt>...</dt>
<dd>Pass to <code>upstream_dependency</code>.</dd>


</dl>

is_upstream: Test upstream - downstream relationship

Description

Usage

Value

Arguments

Examples