help_at: Get help for a function at a package version

In hughjonesd/pastapi: Explore the Historical API of R Packages

Description

Get help for a function at a package version

Usage

help_at(fun, version = version_at_date(package, date), package, date = NULL,
  quiet = TRUE, ...)

Arguments

fun	Function name as a character string. fun can be an S3 method; S4 methods aren't yet supported.
version	Version as a character string. If omitted, use the version available at date.
package	Package. Alternatively, specify the function name as e.g. "package::function".
date	Date, as a character string that can be read by as.Date() e.g. "2016-01-01".
quiet	Logical. Try to minimize output from package installation. (Some output comes from R CMD INSTALL and may be unavoidable.)
...	Arguments passed to versions::install.versions() or remotes::install_version(), and thence to install.packages(). Ncpus may be useful.

Value

The help object (text format only).

See Also

help()

Examples

## Not run: 
help_at("clipr::write_clip", "0.1.1")
help_at("clipr::write_clip", "0.2.0")

## End(Not run)

hughjonesd/pastapi documentation built on Sept. 9, 2019, 12:56 p.m.