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mizer (version 3.2.0)

extensionVersions: Extract the version stamps of an extension chain

Description

Returns the version of the extension package that last upgraded the object for each extension, or NA_character_ where no stamp is recorded (including the legacy character-vector form, which carries no versions).

Usage

extensionVersions(ext)

Value

A named character vector of version strings (NA where unknown).

Arguments

ext

The contents of an @extensions slot (character vector or list).