# zoo v1.8-3

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## S3 Infrastructure for Regular and Irregular Time Series (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 | |

ORDER | Ordering Permutation | |

as.zoo | Coercion from and to zoo | |

na.approx | Replace NA by Interpolation | |

frequency<- | Replacing the Index of Objects | |

na.fill | Fill NA or specified positions. | |

read.zoo | Reading and Writing zoo Series | |

is.regular | Check Regularity of a Series | |

na.StructTS | Fill NA or specified positions. | |

na.aggregate | Replace NA by Aggregation | |

xyplot.zoo | Plot zoo Series with Lattice | |

window.zoo | Extract/Replacing the Time Windows of Objects | |

lag.zoo | Lags and Differences of zoo Objects | |

yearmon | An Index Class for Monthly Data | |

yearqtr | An Index Class for Quarterly Data | |

zoo | Z's Ordered Observations | |

xblocks | Plot contiguous blocks along x axis. | |

na.locf | Last Observation Carried Forward | |

rollapply | Apply Rolling Functions | |

na.trim | Trim Leading/Trailing Missing Observations | |

rollmean | Rolling Means/Maximums/Medians/Sums | |

ggplot2.zoo | Convenience Functions for Plotting zoo Objects with ggplot2 | |

MATCH | Value Matching | |

aggregate.zoo | Compute Summary Statistics of zoo Objects | |

coredata | Extracting/Replacing the Core Data of Objects | |

index | Extracting/Replacing the Index of Objects | |

make.par.list | Make a List from a Parameter Specification | |

merge.zoo | Merge Two or More zoo Objects | |

plot.zoo | Plotting zoo Objects | |

zooreg | Regular zoo Series | |

No Results! |

## Vignettes of zoo

Name | ||

MSFT.rda | ||

demo1.txt | ||

demo2.txt | ||

sunw.rda | ||

zoo-design.Rnw | ||

zoo-faq.Rnw | ||

zoo-quickref.Rnw | ||

zoo-read.Rnw | ||

zoo-refcard-raw.tex | ||

zoo-refcard.pdf | ||

zoo-refcard.tex | ||

zoo.Rnw | ||

zoo.bib | ||

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## Last month downloads

## Details

Date | 2018-07-16 |

License | GPL-2 | GPL-3 |

URL | http://zoo.R-Forge.R-project.org/ |

NeedsCompilation | yes |

Packaged | 2018-07-16 10:42:07 UTC; zeileis |

Repository | CRAN |

Date/Publication | 2018-07-16 15:56:56 UTC |

suggests | chron , coda , DAAG , fts , ggplot2 , mondate , scales , strucchange , timeDate , timeSeries , tis , tseries , xts |

imports | graphics , grDevices , lattice (>= 0.20-27) , utils |

depends | R (>= 3.1.0) , stats |

Contributors | Felix Andrews, G. Grothendieck, Joshua Ulrich, Jeffrey Ryan |

#### Include our badge in your README

```
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```