zoo v1.7-1


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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
rollapply Apply Rolling Functions
index Extracting/Replacing the Index of Objects
MATCH Value Matching
aggregate.zoo Compute Summary Statistics of zoo Objects
zooreg Regular zoo Series
coredata Extracting/Replacing the Core Data of Objects
ggplot2.zoo Convenience Functions for Plotting zoo Objects with ggplot2
frequency<- Replacing the Index of Objects
is.regular Check Regularity of a Series
na.aggregate Replace NA by Aggregation
na.StructTS Fill NA or specified positions.
na.trim Trim Leading/Trailing Missing Observations
na.locf Last Observation Carried Forward
make.par.list Make a List from a Parameter Specification
ORDER Ordering Permutation
lag.zoo Lags and Differences of zoo Objects
xblocks Plot contiguous blocks along x axis.
rollmean Rolling Means/Maximums/Medians
na.approx Replace NA by Interpolation
window.zoo Extract/Replacing the Time Windows of Objects
xyplot.zoo Plot zoo Series with Lattice
yearqtr An Index Class for Quarterly Data
plot.zoo Plotting zoo Objects
na.fill Fill NA or specified positions.
merge.zoo Merge Two or More zoo Objects
yearmon An Index Class for Monthly Data
as.zoo Coercion from and to zoo
zoo Z's Ordered Observations
read.zoo Reading and Writing zoo Series
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Date 2011-07-18
License GPL-2
URL http://zoo.R-Forge.R-project.org/
Packaged 2011-07-18 09:20:50 UTC; zeileis
Repository CRAN
Date/Publication 2011-07-18 09:44:08

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