Probability that a country-year is more democratic than another

Usage

prob_more(
  data,
  country1,
  country2,
  years,
  mean_col = "z1",
  sd_col = "se_z1",
  country_col = "extended_country_name",
  year_col = "year"
)

Arguments

data: A UD dataset with a country_name, year, latent variable mean and latent variable standard deviation columns at least. Little sanity checking is performed - careful!
country1: The first country to compare.
country2: The second country to compare. Can be the same as country1
years: Either a single year, or a length 2 vector of years.
mean_col: The name of the column that contains the mean of the latent variable (defaults to z1)
sd_col: The name of the column that contains the standard error of the latent variable (defaults to se_z1)
country_col: The name of the column that contains the country name (defaults to extended_country_name)
year_col: The name of the column that contains the years (defaults to year)

Value

The probability that the first country-year in the comparison is more democratic than the second.

Examples

# Probability that the USA in 2000 was more democratic than Brazil in 2000,
# according to 2010 release of UDS
prob_more(uds_2010, "United States of America","Brazil",
          2000, mean_col="mean", sd_col="sd")
#> [1] 0.9468881
# Probability that Brazil in 1980 was more democratic than the USA in 1980,
# according to 2010 release of UDS
prob_more(uds_2010, "Brazil","United States of America",
          1980, mean_col="mean", sd_col="sd")
#> [1] 2.325305e-06
# Probability that the USA in 2000 was more democratic than the USA in 1950,
# according to 2010 release of UDS
prob_more(uds_2010, "United States of America","United States of America",
           years = c(2000,1950), mean_col="mean", sd_col="sd")
#> [1] 0.7605136