internal_process

A subgroup of the pre-processed data groups,
generated by <code>migrbc::pre_process</code>.

subgroup

The maximum length of the scanning period.
Can be an integer giving the number of days, the result
of a call to function <code><a rd-options="base" href="/link/difftime?package=migrbc&version=2.0.9&to=base" data-mini-rdoc="base::difftime">difftime</a></code>, or an object of
class <code><a rd-options="lubridate:Duration-class" href="/link/Duration?package=migrbc&version=2.0.9&to=lubridate%3ADuration-class" data-mini-rdoc="lubridate:Duration-class::Duration">Duration</a></code>.

window_size

The length of the yearly test period.
Can be an integer giving the number of days, the result
of a call to function <code><a rd-options="base" href="/link/difftime?package=migrbc&version=2.0.9&to=base" data-mini-rdoc="base::difftime">difftime</a></code>, or an object of
class <code><a rd-options="lubridate:Duration-class" href="/link/Duration?package=migrbc&version=2.0.9&to=lubridate%3ADuration-class" data-mini-rdoc="lubridate:Duration-class::Duration">Duration</a></code>.

threshold_year

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 

internal_process function

The maximum length of the scanning period.
Can be an integer giving the number of days, the result
of a call to function <code><a rd-options='base' href='difftime'>difftime</a></code>, or an object of
class <code><a rd-options='lubridate:Duration-class' href='Duration'>Duration</a></code>.

The length of the yearly test period.
Can be an integer giving the number of days, the result
of a call to function <code><a rd-options='base' href='difftime'>difftime</a></code>, or an object of
class <code><a rd-options='lubridate:Duration-class' href='Duration'>Duration</a></code>.

internal_process: Internal function

Description

Usage

Arguments

Value