zoo v1.7-4


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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
na.StructTS Fill NA or specified positions.
aggregate.zoo Compute Summary Statistics of zoo Objects
na.trim Trim Leading/Trailing Missing Observations
is.regular Check Regularity of a Series
coredata Extracting/Replacing the Core Data of Objects
lag.zoo Lags and Differences of zoo Objects
rollapply Apply Rolling Functions
yearmon An Index Class for Monthly Data
window.zoo Extract/Replacing the Time Windows of Objects
na.fill Fill NA or specified positions.
plot.zoo Plotting zoo Objects
as.zoo Coercion from and to zoo
zooreg Regular zoo Series
xyplot.zoo Plot zoo Series with Lattice
zoo Z's Ordered Observations
MATCH Value Matching
frequency<- Replacing the Index of Objects
index Extracting/Replacing the Index of Objects
na.locf Last Observation Carried Forward
na.approx Replace NA by Interpolation
na.aggregate Replace NA by Aggregation
yearqtr An Index Class for Quarterly Data
make.par.list Make a List from a Parameter Specification
read.zoo Reading and Writing zoo Series
xblocks Plot contiguous blocks along x axis.
rollmean Rolling Means/Maximums/Medians
ORDER Ordering Permutation
merge.zoo Merge Two or More zoo Objects
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Date 2011-08-22
License GPL-2
URL http://zoo.R-Forge.R-project.org/
Packaged 2011-08-22 07:21:49 UTC; zeileis
Repository CRAN
Date/Publication 2011-08-22 07:30:18

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