zoo v1.7-2


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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
rollmean Rolling Means/Maximums/Medians
rollapply Apply Rolling Functions
xblocks Plot contiguous blocks along x axis.
is.regular Check Regularity of a Series
window.zoo Extract/Replacing the Time Windows of Objects
frequency<- Replacing the Index of Objects
index Extracting/Replacing the Index of Objects
na.trim Trim Leading/Trailing Missing Observations
MATCH Value Matching
aggregate.zoo Compute Summary Statistics of zoo Objects
yearmon An Index Class for Monthly Data
na.locf Last Observation Carried Forward
coredata Extracting/Replacing the Core Data of Objects
na.fill Fill NA or specified positions.
na.aggregate Replace NA by Aggregation
as.zoo Coercion from and to zoo
na.StructTS Fill NA or specified positions.
make.par.list Make a List from a Parameter Specification
read.zoo Reading and Writing zoo Series
na.approx Replace NA by Interpolation
lag.zoo Lags and Differences of zoo Objects
zooreg Regular zoo Series
xyplot.zoo Plot zoo Series with Lattice
merge.zoo Merge Two or More zoo Objects
ORDER Ordering Permutation
plot.zoo Plotting zoo Objects
yearqtr An Index Class for Quarterly Data
zoo Z's Ordered Observations
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Date 2011-07-23
License GPL-2
URL http://zoo.R-Forge.R-project.org/
Packaged 2011-07-23 11:19:18 UTC; zeileis
Repository CRAN
Date/Publication 2011-07-23 12:28:05

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