Indexing Vectors
- x[n] nth element
- x[-n] all but the nth element
- x[1:n] first n elements
- x[-(1:n)] elements from n+1 to the end
- x[c(1,4,2)] specific elements
- x[“name”] element named “name”
- x[x > 3] all elements greater than 3
- x[x > 3 & x < 5] all elements between 3 and 5
- x[x %in% c(“a”,”and”,”the”)] elements in the given set
Indexing Lists
- x[n] list with elements n
- x[[n]] nth element of the list
- x[[“name”]] element of the list named “name”
- x
name id