reformat_db: Format the package database
In jokergoo/pkgndep: Analyze Dependency Heaviness of R Packages

reformat_db

R Documentation

Format the package database

Description

Format the package database

Usage

reformat_db(db, version = NULL)

Arguments

`db`	A data frame returned from `available.packages` or `installed.packages`.
`version`	Version of the database, a self-defined text.

Details

It reformats the data frame of the package database into a pkg_db class object.

Value

A pkg_db class object. There are the following methods:

pkg_db$get_meta(package,field=NULL): field can take values in "Package", "Version" and "Repository".
pkg_db$get_dependency_table(package): Get the dependency table.
pkg_db$get_rev_dependency_table(package): Get the reverse dependency table.
pkg_db$package_dependencies(package,recursive=FALSE,reverse=FALSE,which="strong",simplify=FALSE): All the arguments are the same as in package_dependencies. Argument simplify controls whether to return a data frame or a simplied vector.

Examples

## Not run: 
db = available.packages()
db2 = reformat_db(db)

# a pkg_db object generated on 2021-10-28 can be loaded by load_pkg_db()
db2 = load_pkg_db(online = FALSE)
db2
db2$get_meta("ComplexHeatmap")
db2$get_dependency_table("ComplexHeatmap")
db2$get_rev_dependency_table("ComplexHeatmap")
db2$package_dependencies("ComplexHeatmap")
db2$package_dependencies("ComplexHeatmap", recursive = TRUE)

## End(Not run)

jokergoo/pkgndep documentation built on Aug. 15, 2023, 4:13 a.m.