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Functions that Create Data

The following functions in peacesciencer create the base data of interest to a researcher, to which the researcher can use follow-up functions afterward to either add information and/or remove rows.

create_dyadyears()
Create dyad-years from state system membership data
create_leaderdays()
Create leader-days from leader data
create_leaderdyadyears()
Create leader-dyad-years from the Archigos data
create_leaderyears()
Create leader-years from leader data
create_statedays()
Create state-days from state system membership data
create_stateyears()
Create state-years from state system membership data

Functions that Add/Merge/Filter Data

The following functions are called after the base data are created. These add various indicators of interest to the researcher and/or subset the base data to a handful of rows that the user deems appropriate for analysis.

add_archigos()
Add Archigos political leader information to dyad-year and state-year data
add_atop_alliance()
Add Alliance Treaty Obligations and Provisions (ATOP) alliance data to a dyad-year data frame
add_capital_distance()
Add capital-to-capital distance to a data frame
add_ccode_to_gw()
Add Correlates of War state system codes to your data with Gleditsch-Ward state codes.
add_contiguity()
Add Correlates of War direct contiguity information to a data frame
add_cow_alliance()
Add Correlates of War alliance data to a data frame
add_cow_majors()
Add Correlates of War major power information to a data frame
add_cow_mids()
Add Correlates of War (CoW) Militarized Interstate Dispute (MID) data to dyad-year data frame
add_cow_trade()
Add Correlates of War trade data to a data frame
add_cow_wars()
Add Correlates of War war data to dyad-year or state-year data frame.
add_creg_fractionalization()
Add fractionalization/polarization estimates from CREG to a data frame
add_democracy()
Add democracy information to a data frame
add_fpsim()
Add dyadic foreign policy similarity measures to your data
add_gml_mids()
Add Gibler-Miller-Little (GML) Militarized Interstate Dispute (MID) data to a data frame
add_gwcode_to_cow()
Add Gleditsch-Ward state system codes to your data with Correlates of War state codes.
add_igos()
Add Correlates of War international governmental organizations (IGOs) data to dyad-year or state-year data.
add_lead()
Add (Select) Leader Experience and Attribute Descriptions (LEAD) Data to Leader-Year or Leader-Dyad-Year Data
add_lwuf()
Add Estimates of Leader Willingness to Use Force to Leader-Year Data
add_minimum_distance()
Add minimum distance data to your data frame
add_nmc()
Add Correlates of War National Military Capabilities Data
add_peace_years()
Add Peace Years to Your Conflict Data
add_rugged_terrain()
Add rugged terrain information to a data frame
add_sdp_gdp()
Add (Surplus and Gross) Domestic Product Data
add_spells()
Add "Spells" to Data
add_strategic_rivalries()
Add Thompson and Dreyer's (2012) strategic rivalry data to dyad-year data frame
add_ucdp_acd()
Add UCDP Armed Conflict Data to state-year data frame
add_ucdp_onsets()
Add UCDP onsets to state-year data
filter_prd()
Filter dyad-year data to include just politically relevant dyads
whittle_conflicts_duration() wc_duration()
Whittle Duplicate Conflict-Years by Conflict Duration
whittle_conflicts_fatality() wc_fatality()
Whittle Duplicate Conflict-Years by Highest Fatality
whittle_conflicts_hostility() wc_hostility()
Whittle Duplicate Conflict-Years by Conflict Hostility
whittle_conflicts_jds() wc_jds()
Whittle Duplicate Conflict-Years by Just Dropping Something ("JDS")
whittle_conflicts_onsets() wc_onsets()
Whittle Unique Conflict Onset-Years from Conflict-Year Data
whittle_conflicts_reciprocation() wc_recip()
Whittle Duplicate Conflict-Years by Conflict Reciprocation
whittle_conflicts_startmonth() wc_stmon()
Whittle Duplicate Conflict-Years by Lowest Start Month

Other Functions

These are miscellaneous functions also included in this package.

declare_attributes()
Declare peacesciencer-specific attributes to data
download_extdata()
Download Some Extra Data for Peace Science Research
ps_cite()
Get BibTeX Entries Associated with peacesciencer Data and Functions
ps_version()
Get Version Information About Data Included in peacesciencer
show_duplicates()
Show Duplicate Observations in Your Dyad-Year or State-Year Data Frame

Data

These are the data included in peacesciencer. They are used internally for the functions listed above, though a researcher can also call these data objects into the R session if they would like to inspect the data for themselves.

LEAD
(An Abbreviation of) The LEAD Data Set
archigos
Archigos: A (Subset of a) Dataset on Political Leaders
atop_alliance
Alliance Treaty Obligations and Provisions (ATOP) Project Data (v. 5.0)
ccode_democracy
Democracy data for all Correlates of War states
cow_alliance
Correlates of War directed dyad-year alliance data
cow_capitals
A complete list of capitals and capital transitions for Correlates of War state system members
cow_contdir
Correlates of War Direct Contiguity Data (v. 3.2)
cow_ddy
A directed dyad-year data frame of Correlates of War state system members
cow_gw_years
Correlates of War and Gleditsch-Ward states, by year
cow_igo_ndy
Correlates of War Non-Directed Dyad-Year International Governmental Organizations (IGOs) Data
cow_igo_sy
Correlates of War State-Year International Governmental Organizations (IGOs) Data
cow_majors
Correlates of War Major Powers Data (1816-2016)
cow_mid_ddydisps
Directed Dyadic Dispute-Year Data with No Duplicate Dyad-Years (CoW-MID, v. 5.0)
cow_mid_dirdisps
Directed Dyadic Dispute-Year Data (CoW-MID, v. 5.0)
cow_mid_disps
Abbreviated CoW-MID Dispute-level Data (v. 5.0)
cow_mindist
The Minimum Distance Between States in the Correlates of War System, 1886-2019
cow_nmc
Correlates of War National Military Capabilities Data
cow_sdp_gdp
(Surplus and Gross) Domestic Product for Correlates of War States
cow_states
Correlates of War State System Membership Data (1816-2016)
cow_trade_sy
Correlates of War National Trade Data Set (v. 4.0)
cow_war_inter
Correlates of War Inter-State War Data (v. 4.0)
cow_war_intra
Correlates of War Intra-State War Data (v. 4.1)
creg
Composition of Religious and Ethnic Groups (CREG) Fractionalization/Polarization Estimates
false_cow_dyads
False Correlates of War Directed Dyad-Years
false_gw_dyads
False Gleditsch-Ward Directed Dyad-Years
gml_dirdisp
Directed dispute-year data (Gibler, Miller, and Little, 2016)
gml_mid_ddlydisps
Directed Leader-Dyadic Dispute-Year Data with No Duplicate Leader-Dyad-Years (GML, v. 2.2.1, Archigos v. 4.1)
gml_mid_ddydisps
Directed Dyadic Dispute-Year Data with No Duplicate Dyad-Years (GML, v. 2.2.1)
gml_mid_dirleaderdisps
Directed Leader-Dyadic Dispute-Year Data (GML, v. 2.2.1, Archigos v. 4.1)
gml_mid_disps
Abbreviated GML MID Dispute-level Data (v. 2.2.1)
gml_part
Participant Summaries of the GML-MID Data
gw_capitals
A complete list of capitals and capital transitions for Gleditsch-Ward state system members
gw_cow_years
Gleditsch-Ward states and Correlates of War, by year
gw_ddy
A directed dyad-year data frame of Gleditsch-Ward state system members
gw_mindist
The Minimum Distance Between States in the Gleditsch-Ward System, 1886-2019
gw_sdp_gdp
(Surplus and Gross) Domestic Product for Gleditsch-Ward States
gw_states
Gleditsch-Ward (Independent States) System Membership Data (1816-2017)
gwcode_democracy
Democracy data for all Gleditsch-Ward states
hief
Historical Index of Ethnic Fractionalization data
leader_codes
A Data Set of Leader Codes Across Archigos 4.1, Archigos 2.9, and the LEAD Data
lwuf
Leader Willingness to Use Force
maoz_powers
Zeev Maoz' Regional/Global Power Data
ps_bib
A BibTeX Data Frame of Citations
ps_data_version
The Version Numbers for Data Included in peacesciencer
rugged
Rugged/Mountainous Terrain Data
td_rivalries
Thompson and Dreyer's (2012) Strategic Rivalries, 1494-2010
ucdp_acd
UCDP Armed Conflict Data (ACD) (v. 20.1)
ucdp_onsets
UCDP Onset Data (v. 19.1)