erase {datastructures} | R Documentation |
Erase a vector of key-value pair from a map
object.
erase(obj, key, value) ## S4 method for signature 'map,vector,missing' erase(obj, key) ## S4 method for signature 'bimap,missing,vector' erase(obj, value) ## S4 method for signature 'multimap,vector,vector' erase(obj, key, value) ## S4 method for signature 'multimap,vector,list' erase(obj, key, value) ## S4 method for signature 'multimap,vector,ANY' erase(obj, key, value)
obj |
the object to pop an element from |
key |
a vector of keys that should be removed |
value |
optionally a list of values needs to be supplied for some data
structures such as |
returns obj
with removed values
# erases keys from a hashmap or bimap h_map <- hashmap() h_map[letters] <- rnorm(length(letters)) h_map <- erase(h_map, "a") h_map <- erase(h_map, letters[2:5]) # erases keys from a multimap m_map <- multimap() m_map[c("a", "a", "a", "b", "b", "c")] <- rep(1:2, 3) m_map <- erase(m_map, "a") m_map <- erase(m_map, "b", 1)