spatstat (version 1.45-2)

requireversion: Require a Specific Version of a Package

Description

Checks that the version number of a specified package is greater than or equal to the specified version number. For use in stand-alone Rscripts.

Usage

requireversion(pkg, ver)

Arguments

pkg
Package name.
ver
Character string containing version number.

Value

  • Null.

Details

This function checks whether the installed version of the package pkg is greater than or equal to ver.

It is useful in stand-alone Rscripts, which often require a particular version of a package in order to work correctly.

This function should not be used inside a package: for that purpose, the dependence on packages and versions should be specified in the package description file.

Examples

Run this code
requireversion(spatstat, "1.42-0")

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