as.zoo
From zoo v1.5-5
by Achim Zeileis
Coercion from and to zoo
Methods for coercing "zoo"
objects to other classes and
a generic function as.zoo
for coercing objects to class "zoo"
.
- Keywords
- ts
Usage
as.zoo(x, ...)
Arguments
- x
- an object,
- ...
- further arguments passed to
zoo
when the return object is created.
Details
as.zoo
currently has a default method and methods
for ts
, its
and irts
objects
(and zoo
objects themselves).
Methods for coercing objects of class "zoo"
to other classes
currently include: as.ts
, as.matrix
, as.vector
,
as.data.frame
, as.list
(the latter also being available
for "ts"
objects). Furthermore the coercion function
as.its.zoo
is provided, but works only
if the corresponding package is attached.
In the conversion between zoo
and ts
, the zooreg
class is
always used.
Value
as.zoo
returns azoo
object.
See Also
Examples
## coercion to zoo:
## default method
as.zoo(rnorm(5))
## method for "ts" objects
as.zoo(ts(rnorm(5), start = 1981, freq = 12))
## coercion from zoo:
x.date <- as.POSIXct(paste("2003-", rep(1:4, 4:1), "-", sample(1:28, 10, replace = TRUE), sep = ""))
x <- zoo(matrix(rnorm(24), ncol = 2), x.date)
as.matrix(x)
as.vector(x)
as.data.frame(x)
as.list(x)
Community examples
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