ATOP alliances in 2019/20

[joshuaalley]

Thanks for this really useful tool. I'm flagging a small issue with the ATOP alliances data, which has all zeros in dyad-year data for 2019 and 2020.

Here's a simple example:
alliance.min <- create_dyadyears(system = "cow", mry = TRUE, directed = FALSE) %>% add_atop_alliance()
Tabulating the number of dyads with a defense pact returns all 0s for defensive alliances in 2019 or 2020.
table(alliance.min[alliance.min$year >= 2019, ]$atop_defense)

I think these should be NA, as ATOP 5.0 stops at the end of 2018.

[svmiller]

Shit. Thank you for bringing that to my attention. I'll fix that now.

[svmiller]

Fortunately this was an easy fix, but one necessitated by a lazy (on my end) use of an if-else. 535ea4a

[joshuaalley]

Glad it was an easy fix!