maSAE (version 0.1-5)

characterOrNULL-class: Class "characterOrNULL"

Description

the _union_ of classes character and NULL

the _union_ of classes data.frame and NULL

internal character object to store information about the literature used in the reference-attribute of the objects returned by ?maSAE::predict.

Format

chr

Objects from the Class

A virtual Class: No objects may be created from it.

Details

used by '>savObj, '>saeObj

used by '>saeObj

See Also

?methods::setClassUnion

?methods::setClassUnion

Examples

# NOT RUN {
showClass("characterOrNULL")


showClass("data.frameOrNULL")

# }