Migration data summaries

sum_bilat()

Summary of bilateral flows, counter-flow and net migration flow

sum_region() sum_country()

Summary of regional in-, out-, turnover and net-migration totals from an origin-destination migration flow matrix or data frame.

sum_lump()

Sum and lump together small flows into a "other" category

sum_expand()

Sum bilateral data to include aggregate bilateral totals for origin and destination meta areas

multi_comp()

Multiplicative component description of origin-destination migration flow tables

multi_comp2()

Multiplicative component descriptions of origin-destination flow tables based on total reference coding system.

Migration indices

index_age()

Summary indices of migration age profile

index_age_rc()

Summary indices of age migration profile based on parameters from a Rogers and Castro schedule

index_connectivity()

Summary indices of migration connectivity

index_distance()

Summary indices of migration distance

index_impact()

Summary indices of migration impact

index_intensity()

Summary indices of migration intensity

Functions for creating matrices

block_matrix()

Create a block matrix with non-uniform block sizes.

stripe_matrix()

Create a stripped matrix with non-uniform block sizes.

Flows from stocks estimation methods

ffs_demo()

Estimation of bilateral migrant flows from bilateral migrant stocks using demographic accounting approaches

ffs_diff()

Estimation of bilateral migrant flows from bilateral migrant stocks using stock differencing approaches

ffs_rates()

Estimation of bilateral migrant flows from bilateral migrant stocks using rates approaches

Constrained maximisation routines

cm2()

Conditional maximization routine for the indirect estimation of origin-destination migration flow table with known margins

cm3()

Conditional maximization routine for the indirect estimation of origin-destination-migrant type migration flow tables with known origin and destination margins.

cm_net()

Conditional maximization routine for the indirect estimation of origin-destination-type migration flow tables with known net migration totals.

cm_net_tot()

Conditional maximization routine for the indirect estimation of origin-destination-type migration flow tables with known net migration and grand totals.

Iterative proportional fitting procedures

ipf2()

Iterative proportional fitting routine for the indirect estimation of origin-destination migration flow table with known margins.

ipf3()

Iterative proportional fitting routine for the indirect estimation of origin-destination-migrant type migration flow tables with known origin and destination margins.

ipf2_block()

Iterative proportional fitting routine for the indirect estimation of origin-destination-type migration flow tables with known origin and destination margins and block diagonal elements.

ipf2_stripe()

iterative proportional fitting routine for the indirect estimation of origin-destination-type migration flow tables with known origin and destination margins and stripe elements.

Net migration estimation methods

net_sr()

Estimate net migration from survival ratios applied to lifetime migration data

net_vs()

Estimate net migration from vital statistics

Rogers Castro model age schedule parameters

rc_model_fund

Fundamental parameters for Rogers-Castro migration schedule

rc_model_un

Model parameters for six Rogers-Castro migration schedules proposed by UN DESA

Rescaling functions

rescale_net()

Rescale net migration total to a global zero sum

rescale_integer_sum()

Rescale integer vector to a set sum

Visualisation

mig_chord()

Chord diagram for directional origin-destination data

str_wrap_n()

Wrap character string to fit a target number of lines

Miscellaneous

quadratic_eqn()

Solutions from the quadratic equation

dict_ims

Dictionary to look up region geographies based on countries used in UN DESA International Migrant Stock.

Classic data sets

alabama_1970

Alabama population totals in 1960 and 1970 by age, sex and race

bombay_1951

Bombay population totals in 1941 and 1951 by age

indian_sub

Lifetime migration totals for states and zones in the Indian 1901 to 1931

ipumsi_age

Age specific migration and population counts from two IPUMSI samples

italy_area

Single year age-specific origin destination migration flows between Italian NUTS1 areas

korea_dist

Weighted distances in kilometers between 2020 population centroids of Korean administrative regions

korea_pop

Annual resident population totals of Korean regions

korea_reg

Annual origin destination migration flows between Korean regions

manila_1970

Manila female population 1970 by age

new_england_1960

New England male white-native population totals in 1950 and 1960 by place of birth and age

uar_1960

Lifetime migration data for Governorates of United Arab Republic in 1960

usa_1960

US population totals in 1950 and 1960 by place of birth, age, sex and race