The function to compute EB Rate from an event variable and a
base variable.
Arguments
- df
A data frame with two selected variable: one is "event", anothor is
"base" variable. E.g. guerry[c("hr60", "po60")]
Value
A data.frame with two columns "EB Rate" and "IsNull".
Examples
if (FALSE) { # \dontrun{
library(sf)
nat <- st_read("natregimes.shp")
ebr <- eb_rates(nat[c("HR60", "PO60")])
ebr
} # }