zoo v1.6-2


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by Achim Zeileis

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


Date 2009-11-23
LazyLoad yes
License GPL-2
URL http://R-Forge.R-project.org/projects/zoo/
Packaged 2009-11-23 10:10:58 UTC; zeileis
Repository CRAN
Date/Publication 2009-11-23 10:22:33

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