zoo v1.5-2

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

Functions in zoo

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

Date 2008-04-05
LazyLoad yes
License GPL-2
URL http://R-Forge.R-project.org/projects/zoo/
Packaged Sat Apr 5 05:45:21 2008; zeileis

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