v1.2.0

This is is a biggie. Changes include:

• Package now assumes a version of R greater than 4.1.0. {isard} introduced as dependency.
• add_cow_alliance() is deprecated and slated for removal at the request of the data set's maintainer. The function right now returns a stop communicating this information, also at the request of the data set's maintainer.
• add_sdp_gdp() is deprecated and slated for removal. Its functionality is replaced by add_sim_gdp_pop().
• add_gml_mids() is superseded in light of the release of the MIC data.
• add_cow_mids() is superseded.
• cow_alliance, ccode_democracy, gwcode_democracy, cow_sdp_gdp, gw_sdp_gdp, cow_gw_years, and gw_cow_years are deprecated and slated for removal.
• Fix error in cow_capitals data that did not adequately record Burundi's capital change in 2018. This concerns the data generated for cow_capitals.
• Fix error in tss_rivalries for tssr_id = 61. This was in the book but the change in the data-raw directory shows what they assuredly meant.
• Add mry argument to add_cow_majors(), fix bug identified by @rochelleterman in 17
• Fix issue of imputing 0s outside temporal domain of contiguity data for add_contiguity(). Brought to my attention by @jandresgannon in 19.
• atop_alliance updated to version 5.1.
• add_atop_alliance has an extra argument (ndir) for how it should perform on non-directed dyad-year or leader-dyad-year data.
• cow_capitals and gw_capitals formally current through 2024. Indonesia is the most likely candidate to require an update in these data, though that change has not happened yet. cow_capitals and gw_capitals further include some corrections and the introduction of start and end dates for capitals.
• gw_ddy and cow_ddy current through 2024.
• add_ccode_to_gw() and add_gwcode_to_cow() now lean on data in {isard}.
• add_capital_distance() includes an argument ("transsum") for what observation to privilege for yearly summaries in which there was a capital transition. Support for leader-level data momentarily dropped.
• cow_contdir replaces columns begin and end with stdate and enddate communicating the same information, but in date form.
• add_contiguity() has an argument ("slice") that determines its behavior for when there is a change in a contiguity relationship in a given year. The mry argument actually does something now.
• ccode_democracy and gwcode_democracy are deprecated and slated for removal. Democracy data are now maintained in the {isard} package.
• add_democracy() now leans on {isard} for democracy data.
• add_democracy() and add_nmc() have a keep argument now, allowing the user to select particular estimates from the democracy/capabilities data rather than get everything (including stuff they don't want).
• add_strategic_rivalries() uses tss_rivalries now and no longer has additional arguments prioritizing rivalry type.
• add_minimum_distance() optionally (and by default) incorporates extended data available in download_extdata().
• The "create" functions lean on the state system data maintained in {isard}. This also means micro-states in the G-W system are included.
• false_gw_dyads now includes information about whether the first or second state is/was a micro-state. Two directed entries for Sao Tome and Principe and the Republic of Vietnam were added as well.
• Shortcuts added: add_cap_dist() for add_capital_distance(), add_creg_frac() for add_creg_fractionalization(), add_min_dist() for add_minimum_distance().
• ucdp_acd updated to 25.1. add_ucdp_acd() incorporates these newer versions of the data to allow for armed conflict analyses through 2024.

Additions include:

• archigossums is a basic yearly summary of leader turnover in the archigos data. It will make add_archigos() much faster by cutting down on computation time.
• add_sim_gdp_pop() replaces add_sdp_gdp(), using data from {isard}
• terrthreat is a state-year data set on latent territorial threat. add_latent_territorial_threat() will add it to your data frames.