zoo v1.6-3


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


Date 2010-04-23
LazyLoad yes
License GPL-2
URL http://R-Forge.R-project.org/projects/zoo/
Packaged 2010-04-23 07:28:47 UTC; zeileis
Repository CRAN
Date/Publication 2010-04-23 07:43:54

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