Class "Versions"
A class to record version number information. This class is used to
report versions; to add version information to your own class, use
Versioned-class.
The following are defined; package developers may write additional methods.
new("Versions", ...)Create a new Versions-class instance,
perhaps with named version elements (the contents of
...) added. Named elements of versions are
character strings that can be coerced using
package_version, or package_version
instances, Versions-class objects.
object["id"]Obtain version information "id" from object.
object["id"] <- valueCreate or update version information "id" on instance object.
object[["id"]]Obtain version information "id" from object. The result is a list of integers, corresponding to entries in the version string.
object[["id"]] <- valueCreate or update version information "id" on instance object.
object$idObtain version information "id" from object.The result is a list of integers, corresponding to entries in the version string.
object$id <- valueCreate or update version
information "id" on instance object.
show(object)Display version information.
updateObject(object)Update object to the
current Versions-class representation. Note that this does not
update another class that uses Versions-class to track the
class version.
as(object, "character")Convert object to character representation, e.g., 1.0.0
object1 < object2Compare object1 and object2 using version class information. Symbols in addition to < are admissible; see ?Ops
Biocore
obj <- new("Versions", A="1.0.0")
obj
obj["A"] <- "1.0.1"
obj
obj["B"] <- "2.0"
obj
obj1 <- obj
obj1["B"] <- "2.0.1"
obj1 == obj
obj1["B"] > "2.0.0"
obj["B"] == "2.0" # TRUE!Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.