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zoo (version 1.8-14)

S3 Infrastructure for Regular and Irregular Time Series (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 ts and base R by providing methods to extend standard generics.

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Version

Install

install.packages('zoo')

Monthly Downloads

689,346

Version

1.8-14

License

GPL-2 | GPL-3

Maintainer

Achim Zeileis

Last Published

April 10th, 2025

Functions in zoo (1.8-14)

Make a List from a Parameter Specification

Last Observation Carried Forward

Plotting zoo Objects

Fill NA or specified positions.

Fill NA or specified positions.

Replace NA by Aggregation

Replace NA by Interpolation

Reading and Writing zoo Series

Merge Two or More zoo Objects

Trim Leading/Trailing Missing Observations

Plotting zoo Objects with tinyplot

Rolling Means/Maximums/Medians/Sums

Plot contiguous blocks along x axis.

Regular zoo Series

An Index Class for Monthly Data

Plot zoo Series with Lattice

An Index Class for Quarterly Data

Extract/Replacing the Time Windows of Objects

Z's Ordered Observations

Apply Rolling Functions

Extracting/Replacing the Core Data of Objects

Convenience Functions for Plotting zoo Objects with ggplot2

Extracting/Replacing the Index of Objects

Check Regularity of a Series

Lags and Differences of zoo Objects

Replacing the Index of Objects

Coercion from and to zoo

Compute Summary Statistics of zoo Objects

Ordering Permutation