zoo v1.7-8


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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
zoo Z's Ordered Observations
window.zoo Extract/Replacing the Time Windows of Objects
ORDER Ordering Permutation
na.fill Fill NA or specified positions.
na.trim Trim Leading/Trailing Missing Observations
xblocks Plot contiguous blocks along x axis.
MATCH Value Matching
na.approx Replace NA by Interpolation
zooreg Regular zoo Series
coredata Extracting/Replacing the Core Data of Objects
as.zoo Coercion from and to zoo
merge.zoo Merge Two or More zoo Objects
is.regular Check Regularity of a Series
yearqtr An Index Class for Quarterly Data
na.aggregate Replace NA by Aggregation
plot.zoo Plotting zoo Objects
na.StructTS Fill NA or specified positions.
rollmean Rolling Means/Maximums/Medians
rollapply Apply Rolling Functions
xyplot.zoo Plot zoo Series with Lattice
na.locf Last Observation Carried Forward
read.zoo Reading and Writing zoo Series
index Extracting/Replacing the Index of Objects
aggregate.zoo Compute Summary Statistics of zoo Objects
yearmon An Index Class for Monthly Data
frequency<- Replacing the Index of Objects
lag.zoo Lags and Differences of zoo Objects
make.par.list Make a List from a Parameter Specification
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Date 2012-10-05
License GPL-2
URL http://zoo.R-Forge.R-project.org/
Packaged 2012-10-06 16:16:30 UTC; zeileis
Repository CRAN
Date/Publication 2012-10-06 16:23:09

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