# zoo v1.8-6

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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 | |

na.locf | Last Observation Carried Forward | |

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

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

yearmon | An Index Class for Monthly Data | |

na.approx | Replace NA by Interpolation | |

xyplot.zoo | Plot zoo Series with Lattice | |

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

as.zoo | Coercion from and to zoo | |

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

zooreg | Regular zoo Series | |

na.aggregate | Replace NA by Aggregation | |

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

yearqtr | An Index Class for Quarterly Data | |

plot.zoo | Plotting zoo Objects | |

zoo | Z's Ordered Observations | |

read.zoo | Reading and Writing zoo Series | |

xblocks | Plot contiguous blocks along x axis. | |

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

rollapply | Apply Rolling Functions | |

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

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

ORDER | Ordering Permutation | |

index | Extracting/Replacing the Index of Objects | |

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

MATCH | Value Matching | |

frequency<- | Replacing the Index of Objects | |

is.regular | Check Regularity of a Series | |

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

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

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 | ||

No Results! |

## Last month downloads

## Details

Date | 2019-05-27 |

License | GPL-2 | GPL-3 |

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

NeedsCompilation | yes |

Packaged | 2019-05-27 10:36:45 UTC; zeileis |

Repository | CRAN |

Date/Publication | 2019-05-28 08:00:53 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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```