seq
:
scan
head()
tail()
'['
'[['
'[<-'
'[[<-'
match()
%in%
findInterval()
split()
unsplit()
order()
sort()
duplicated()
tabulate()
invisible()
...
x <- 1:10 head(x)
## [1] 1 2 3 4 5 6
tail(x)
## [1] 5 6 7 8 9 10