zoo v1.3-0

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

Date 2007-04-20
LazyLoad yes
License GPL
Packaged Fri Apr 20 13:00:55 2007; zeileis

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