zoo

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Z's Ordered Observations

zoo is the creator for an S3 class of indexed totally ordered observations which includes irregular time series.

Keywords
ts
Usage
zoo(x, order.by)
Arguments
x
a vector or matrix.
order.by
a vector by which the observations in x are ordered.
Details

zoo is still under development, but it provides plot and index (or time) methods for "zoo" objects and can convert "ts" and "irts" objects with as.zoo.

The vector of indexes order.by can be of arbitrary class, but it is essential that order(order.by) works. For other functions it is assumed that c(), length() and subsetting [, work.

Value

  • A vector or matrix with an "index" attribute of the same dimension (NROW(x)) by which x is ordered.

See Also

plot.zoo, index, merge.zoo

Aliases
  • zoo
  • print.zoo
  • is.zoo
  • [.zoo
  • str.zoo
  • window.zoo
  • rbind.zoo
Examples
x.date <- as.POSIXct(paste("2003-02-", c(1, 3, 7, 9, 14), sep = ""))
x <- zoo(rnorm(5), x.date)
plot(x)

time(x)

x[1:3]
Documentation reproduced from package zoo, version 0.1-4, License: GPL

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