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zoo

S3 Infrastructure for Regular and Irregular Time Series (Z's Ordered Observations)

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.

Functions (29)

MATCH

Value Matching

ORDER

Ordering Permutation

aggregate.zoo

Compute Summary Statistics of zoo Objects

as.zoo

Coercion from and to zoo

coredata

Extracting/Replacing the Core Data of Objects

frequency

Replacing the Index of Objects

ggplot2.zoo

Convenience Functions for Plotting zoo Objects with ggplot2

index

Extracting/Replacing the Index of Objects

is.regular

Check Regularity of a Series

lag.zoo

Lags and Differences of zoo Objects

make.par.list

Make a List from a Parameter Specification

merge.zoo

Merge Two or More zoo Objects

na.StructTS

Fill NA or specified positions.

na.aggregate

Replace NA by Aggregation

na.approx

Replace NA by Interpolation

na.fill

Fill NA or specified positions.

na.locf

Last Observation Carried Forward

na.trim

Trim Leading/Trailing Missing Observations

plot.zoo

Plotting zoo Objects

read.zoo

Reading and Writing zoo Series

rollapply

Apply Rolling Functions

rollmean

Rolling Means/Maximums/Medians/Sums

window.zoo

Extract/Replacing the Time Windows of Objects

xblocks

Plot contiguous blocks along x axis.

xyplot.zoo

Plot zoo Series with Lattice

yearmon

An Index Class for Monthly Data

yearqtr

An Index Class for Quarterly Data

zoo

Z's Ordered Observations

zooreg

Regular zoo Series

zoo

S3 Infrastructure for Regular and Irregular Time Series (Z's Ordered Observations)

v1.8-10

GPL-2 | GPL-3

Authors

Achim Zeileis [aut, cre] (<https://orcid.org/0000-0003-0918-3766>), Gabor Grothendieck [aut], Jeffrey A. Ryan [aut], Joshua M. Ulrich [ctb], Felix Andrews [ctb]

Initial release

2022-04-15

zoo

Functions (29)

zoo

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