How to get name from a value in an R vector with names
r
Solution
Lots of ways to do this.
names(v)[v == "NY"] # extract the names, subset by equality to NY
# or
names(which(v == "NY")) # extract entries that == NY and get names
to name a few.
Problem
I know that with a vector such as ``` v <- c("MA", "NY", "PA") names(v) <- c("Massachusetts", "New York", "Pennsylvania") ``` It is possible to get a value from a name using syntax such as ``` v["New York"] ``` But is it possible to get a name from a value (like the PHP key() function)? Thanks.