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zoo (version 1.8-1)

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

1.8-1

License

GPL-2 | GPL-3

Maintainer

Achim Zeileis

Last Published

January 8th, 2018

Functions in zoo (1.8-1)

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.locf

Last Observation Carried Forward
na.trim

Trim Leading/Trailing Missing Observations
rollapply

Apply Rolling Functions
rollmean

Rolling Means/Maximums/Medians/Sums
MATCH

Value Matching
ORDER

Ordering Permutation
plot.zoo

Plotting zoo Objects
read.zoo

Reading and Writing zoo Series
window.zoo

Extract/Replacing the Time Windows of Objects
xblocks

Plot contiguous blocks along x axis.
aggregate.zoo

Compute Summary Statistics of zoo Objects
as.zoo

Coercion from and to zoo
na.approx

Replace NA by Interpolation
na.fill

Fill NA or specified positions.
yearqtr

An Index Class for Quarterly Data
zoo

Z's Ordered Observations
ggplot2.zoo

Convenience Functions for Plotting zoo Objects with ggplot2
index

Extracting/Replacing the Index of Objects
zooreg

Regular zoo Series
na.StructTS

Fill NA or specified positions.
na.aggregate

Replace NA by Aggregation
xyplot.zoo

Plot zoo Series with Lattice
yearmon

An Index Class for Monthly Data
coredata

Extracting/Replacing the Core Data of Objects
frequency<-

Replacing the Index of Objects