# zoo v1.8-1

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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 | |

is.regular | Check Regularity of a Series | |

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

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

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

na.locf | Last Observation Carried Forward | |

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

rollapply | Apply Rolling Functions | |

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

MATCH | Value Matching | |

ORDER | Ordering Permutation | |

plot.zoo | Plotting zoo Objects | |

read.zoo | Reading and Writing zoo Series | |

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

xblocks | Plot contiguous blocks along x axis. | |

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

as.zoo | Coercion from and to zoo | |

na.approx | Replace NA by Interpolation | |

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

yearqtr | An Index Class for Quarterly Data | |

zoo | Z's Ordered Observations | |

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

index | Extracting/Replacing the Index of Objects | |

zooreg | Regular zoo Series | |

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

na.aggregate | Replace NA by Aggregation | |

xyplot.zoo | Plot zoo Series with Lattice | |

yearmon | An Index Class for Monthly Data | |

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

frequency<- | Replacing the Index of 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 | 2018-01-08 |

License | GPL-2 | GPL-3 |

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

NeedsCompilation | yes |

Packaged | 2018-01-08 09:22:51 UTC; zeileis |

Repository | CRAN |

Date/Publication | 2018-01-08 09:44:12 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 (>= 2.10.0) , stats |

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

#### Include our badge in your README

```
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```