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zoo (version 1.7-13)

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

755,288

Version

1.7-13

License

GPL-2 | GPL-3

Maintainer

Achim Zeileis

Last Published

May 3rd, 2016

Functions in zoo (1.7-13)

na.fill

Fill NA or specified positions.
index

Extracting/Replacing the Index of Objects
ggplot2.zoo

Convenience Functions for Plotting zoo Objects with ggplot2
MATCH

Value Matching
read.zoo

Reading and Writing zoo Series
rollmean

Rolling Means/Maximums/Medians/Sums
na.locf

Last Observation Carried Forward
na.approx

Replace NA by Interpolation
aggregate.zoo

Compute Summary Statistics of zoo Objects
na.aggregate

Replace NA by Aggregation
coredata

Extracting/Replacing the Core Data of Objects
zooreg

Regular zoo Series
is.regular

Check Regularity of a Series
na.trim

Trim Leading/Trailing Missing Observations
merge.zoo

Merge Two or More zoo Objects
as.zoo

Coercion from and to zoo
yearmon

An Index Class for Monthly Data
zoo

Z's Ordered Observations
lag.zoo

Lags and Differences of zoo Objects
yearqtr

An Index Class for Quarterly Data
na.StructTS

Fill NA or specified positions.
plot.zoo

Plotting zoo Objects
rollapply

Apply Rolling Functions
ORDER

Ordering Permutation
window.zoo

Extract/Replacing the Time Windows of Objects
xblocks

Plot contiguous blocks along x axis.
make.par.list

Make a List from a Parameter Specification
frequency<-

Replacing the Index of Objects
xyplot.zoo

Plot zoo Series with Lattice