create_leaderdays() allows you to generate leader-day data from
leader-level data provided in peacesciencer.
Arguments
- system
a leader system with which to create leader-days. Right now, only "archigos" is supported.
- standardize
a character vector of length one: "cow", "gw", or "none". If "cow", the function standardizes the leader-days to just those that overlap with state system membership in the Correlates of War state system (see:
cow_states). If "gw", the function standardizes the leader-days to just those that overlap with the state system dates of the Gleditsch-Ward date (see:gw_states). If "none", the function returns all leader-days as presented in Archigos (which is nominally denominated in Gleditsch-Ward state system codes, if not necessarily Gleditsch-Ward state system dates). Default is "none".
Value
create_leaderdays() takes leader-level data available in peacesciencer
and returns a leader-day-level data frame.
Details
create_leaderdays(), as of writing, only supports the Archigos data set of leaders. I envision this function
being mostly for internal uses. Basically, create_leaderyears() effectively starts by first running a version of
create_leaderdays(). So, why not have this function too?
References
Goemans, Henk E., Kristian Skrede Gleditsch, and Giacomo Chiozza. 2009. "Introducing Archigos: A Dataset of Political Leaders" Journal of Peace Research 46(2): 269--83.
Examples
# \donttest{
create_leaderdays()
#> # A tibble: 5,298,380 × 5
#> obsid gwcode leader date yrinoffice
#> <chr> <dbl> <chr> <date> <dbl>
#> 1 USA-1869 2 Grant 1869-03-04 1
#> 2 USA-1869 2 Grant 1869-03-05 1
#> 3 USA-1869 2 Grant 1869-03-06 1
#> 4 USA-1869 2 Grant 1869-03-07 1
#> 5 USA-1869 2 Grant 1869-03-08 1
#> 6 USA-1869 2 Grant 1869-03-09 1
#> 7 USA-1869 2 Grant 1869-03-10 1
#> 8 USA-1869 2 Grant 1869-03-11 1
#> 9 USA-1869 2 Grant 1869-03-12 1
#> 10 USA-1869 2 Grant 1869-03-13 1
#> # ℹ 5,298,370 more rows
create_leaderdays(standardize = "gw")
#> Joining with `by = join_by(gwcode, date)`
#> # A tibble: 5,181,021 × 5
#> obsid gwcode leader date yrinoffice
#> <chr> <dbl> <chr> <date> <dbl>
#> 1 USA-1869 2 Grant 1869-03-04 1
#> 2 USA-1869 2 Grant 1869-03-05 1
#> 3 USA-1869 2 Grant 1869-03-06 1
#> 4 USA-1869 2 Grant 1869-03-07 1
#> 5 USA-1869 2 Grant 1869-03-08 1
#> 6 USA-1869 2 Grant 1869-03-09 1
#> 7 USA-1869 2 Grant 1869-03-10 1
#> 8 USA-1869 2 Grant 1869-03-11 1
#> 9 USA-1869 2 Grant 1869-03-12 1
#> 10 USA-1869 2 Grant 1869-03-13 1
#> # ℹ 5,181,011 more rows
# }