[-methods: Extraction Method for Mondates
Description
Methods to extract portions of a mondate
Usage
"head"(x, ...)
"tail"(x, ...)
Arguments
...
See the base functions for details.
Methods
[(x = "mondate")-
See
[ for more details.
Details
Whether the mondate x is shaped as a vector or a matrix,
the head and rbind methods will behave just as they
would if x were numeric.
Examples
(m<-structure(mondate.ymd(2001:2010,12,31),names=LETTERS[1:10]))
m[1]
m[2:5]
head(m)
tail(m,2)
(M<-cbind(m-12,m,m+12, deparse.level=2)) # a matrix
M[1:5,1:2] # '[' works with matrix mondates
head(M,2) # as does 'head'