UsingR (version 2.0-7)

Split.zoo: Add split method for zoo objects

Description

Splits zoo objects by a grouping variable ala split(). Each univariate series is turned into a multivariate zoo object. If the original series is multivariate, the output is a list of multivariate zoo objects.

Usage

Split.zoo(x, f)

Arguments

x

an univariate or multivariate zoo object

f

A grouping variable of the same length of x. A warning is given is length(f) is not the same as index size of x

Value

Returns a multivariate zoo object, or list of such.

See Also

split

Examples

# NOT RUN {
if(require(zoo)) {
split.zoo = Split.zoo ## make generic
x = zoo(1:30,1:30)
f = sample(letters[1:5],30, replace=TRUE)
split(x,f)
}
# }