Get unique reference notations — get_unique

When multiple references (formatted as e.g. Dawkins (2008)) have an identical author (or authors) and publication year, it is common practice to include a lowercase letter after the year. This function does this for a vector containing multiple references.

get_unique_references(x)

Arguments

x: a character vector with multiple strings/references

Value

a character vector

Examples

refs <- c("Dawkins (2008)", "Dawkins (2008)", "Stephenson (2008)")

BioMathR::get_unique_references(refs)
#> [1] "Dawkins (2008a)"   "Dawkins (2008b)"   "Stephenson (2008)"