set: Set operations for messy dates

In messydates: A Flexible Class for Messy Dates

Set operations for messy dates

Description

Performs intersection (md_intersect()) and union (md_union()) on, inter alia, messy date class objects. For a more typical 'join' that retains all elements, even if duplicated, please use md_multiset.

Usage

md_intersect(...)

md_union(x, y)

md_multiset(x, y)

Arguments

x, y, ...

Messy date or other class objects

Value

A vector of the same mode for intersect, or a common mode for union.

Functions

• md_intersect(): Find intersection of sets of messy dates

• md_union(): Find union of sets of messy dates

• md_multiset(): Join two sets of messy dates

Examples

md_intersect(as_messydate("2012-01-01..2012-01-20"),as_messydate("2012-01"))
md_union(as_messydate("2012-01-01..2012-01-20"),as_messydate("2012-01"))
md_multiset(as_messydate("2012-01-01..2012-01-20"),as_messydate("2012-01"))

messydates documentation built on Jan. 22, 2023, 1:36 a.m.