zoo v1.2-0


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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 with ts and base R by providing methods to extend standard generics.

Functions in zoo

Name Description
xyplot.zoo Plot zoo Series with Lattice
coredata Extracting/Replacing the Core Data of Objects
MATCH Value Matching
read.zoo Read zoo Series via read.table
as.zoo Coercion from and to zoo
plot.zoo Plotting zoo Objects
window.zoo Extract/Replacing the Time Windows of Objects
is.regular Check Regularity of a Series
yearmon An Index Class for Monthly Data
zoo Z's Ordered Observations
rollmean Rolling Means/Maximums/Medians
lag.zoo Lags and Differences of zoo Objects
na.locf Last Observation Carried Forward
aggregate.zoo Compute Summary Statistics of zoo Objects
ORDER Ordering Permutation
merge.zoo Merge Two or More zoo Objects
as.Date.numeric Date Conversion Functions from Numeric, Integer and ts Objects
rollapply Apply Rolling Functions
make.par.list Make a List from a Parameter Specification
frequency<- Replacing the Index of Objects
zooreg Regular zoo Series
na.approx Replace NA by Interpolation
na.trim Trim Leading/Trailing Missing Observations
yearqtr An Index Class for Quarterly Data
index Extracting/Replacing the Index of Objects
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Date 2006-08-18
LazyLoad yes
License GPL
Packaged Fri Aug 18 12:52:47 2006; zeileis

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