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zoo (version 1.5-2)

Z's ordered observations

Description

An S3 class with methods for totally ordered indexed observations. It is particularly aimed at irregular time series of numeric vectors/matrices and factors. zoo's key design goals are independence of a particular index/date/time class and consistency with with ts and base R by providing methods to extend standard generics.

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Version

Install

install.packages('zoo')

Monthly Downloads

584,598

Version

1.5-2

License

GPL-2

Maintainer

Achim Zeileis

Last Published

April 10th, 2025

Functions in zoo (1.5-2)

MATCH

Value Matching
aggregate.zoo

Compute Summary Statistics of zoo Objects
coredata

Extracting/Replacing the Core Data of Objects
plot.zoo

Plotting zoo Objects
frequency<-

Replacing the Index of Objects
index

Extracting/Replacing the Index of Objects
rollmean

Rolling Means/Maximums/Medians
merge.zoo

Merge Two or More zoo Objects
na.approx

Replace NA by Interpolation
xyplot.zoo

Plot zoo Series with Lattice
as.Date.numeric

Date Conversion Functions from Numeric, Integer and ts Objects
window.zoo

Extract/Replacing the Time Windows of Objects
as.zoo

Coercion from and to zoo
ORDER

Ordering Permutation
is.regular

Check Regularity of a Series
rollapply

Apply Rolling Functions
na.trim

Trim Leading/Trailing Missing Observations
na.locf

Last Observation Carried Forward
yearmon

An Index Class for Monthly Data
lag.zoo

Lags and Differences of zoo Objects
make.par.list

Make a List from a Parameter Specification
zoo

Z's Ordered Observations
yearqtr

An Index Class for Quarterly Data
zooreg

Regular zoo Series
read.zoo

Reading and Writing zoo Series