pkgndep (version 1.2.0)

heaviness: Heaviness from parent packages

Description

Heaviness from parent packages

Usage

heaviness(x, rel = FALSE, a = 10, only_strong_dep = FALSE)

Value

A numeric vector.

Arguments

x

An object returned by pkgndep.

rel

Whether to return the absolute measure or the relative measure.

a

A constant added for calculating the relative measure.

only_strong_dep

Whether to only return the heaviness for strong parents.

Details

The heaviness from a parent package is calculated as follows: If package B is in the Depends/Imports/LinkingTo fields of package A, which means, package B is necessary for package A, denote v1 as the total numbers of packages required for package A, and v2 as the total number of required packages if moving package B to Suggests (which means, now B is not necessary for A). The absolute measure is simply v1 - v2 and relative measure is (v1 + a)/(v2 + a).

In the second scenario, if B is in the Suggests/Enhances fields of package A, now v2 is the total number of required packages if moving B to Imports, the absolute measure is v2 - v1 and relative measure is (v2 + a)/(v1 + a).

Examples

x = readRDS(system.file("extdata", "ComplexHeatmap_dep.rds", package = "pkgndep"))
heaviness(x)
heaviness(x, rel = TRUE)