zoo v1.7-6

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by Achim Zeileis

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 in zoo

Name Description
frequency<- Replacing the Index of Objects
merge.zoo Merge Two or More zoo Objects
rollapply Apply Rolling Functions
lag.zoo Lags and Differences of zoo Objects
MATCH Value Matching
coredata Extracting/Replacing the Core Data of Objects
xblocks Plot contiguous blocks along x axis.
zoo Z's Ordered Observations
plot.zoo Plotting zoo Objects
zooreg Regular zoo Series
make.par.list Make a List from a Parameter Specification
as.zoo Coercion from and to zoo
na.approx Replace NA by Interpolation
aggregate.zoo Compute Summary Statistics of zoo Objects
is.regular Check Regularity of a Series
window.zoo Extract/Replacing the Time Windows of Objects
index Extracting/Replacing the Index of Objects
yearmon An Index Class for Monthly Data
na.StructTS Fill NA or specified positions.
ORDER Ordering Permutation
na.trim Trim Leading/Trailing Missing Observations
rollmean Rolling Means/Maximums/Medians
na.locf Last Observation Carried Forward
na.fill Fill NA or specified positions.
yearqtr An Index Class for Quarterly Data
na.aggregate Replace NA by Aggregation
read.zoo Reading and Writing zoo Series
xyplot.zoo Plot zoo Series with Lattice
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Details

Date 2011-11-02
License GPL-2
URL http://zoo.R-Forge.R-project.org/
Packaged 2011-11-02 18:29:46 UTC; zeileis
Repository CRAN
Date/Publication 2011-11-02 18:40:09

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