check_and_tidy_date_first_last

date

date_crossing

name

<p>A function to check the date variable whether
 is the right date. This is an internal function.</p>

Provides mechanisms for classifying border crossings using a rules-based methodology. The goal of performing this type of classification is to identify any potential long-term migrants.  A long-term migration is defined as a border crossing involving a change in residence status. A border crossing counts as a long-term migration to/from a country if it entails a change from non-residence to residence / residence to non-residence.  The rules-based classification that used to determine a long-term migration is defined by a threshold duration and a test duration, alternatively named window size. Under a 12/16 rule, for instance, the threshold duration is 12 months and the test duration (window size) is 16 months. With a 9/12 rule, the threshold duration is 9 months and the test duration (window size)  is 12 months. For more information about the methodology applied, please visit Stats NZ (2020) <https://www.stats.govt.nz/methods/defining-migrants-using-travel-histories-and-the-1216-month-rule>.

Leshi Chen

migrbc

Production Rules Based Classification of Migration

Pubudu Senanayake

Del Robinson

Statistics New Zealand 

check_and_tidy_date_first_last function

Validate dates in sequence — check_and_tidy_date_first_last

Validate dates in sequence

check_and_tidy_date_first_last: Validate dates in sequence

Description

Usage

Arguments

Value