# zoo v1.7-4

0

Monthly downloads

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

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

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

is.regular | Check Regularity of a Series | |

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

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

rollapply | Apply Rolling Functions | |

yearmon | An Index Class for Monthly Data | |

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

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

plot.zoo | Plotting zoo Objects | |

as.zoo | Coercion from and to zoo | |

zooreg | Regular zoo Series | |

xyplot.zoo | Plot zoo Series with Lattice | |

zoo | Z's Ordered Observations | |

MATCH | Value Matching | |

frequency<- | Replacing the Index of Objects | |

index | Extracting/Replacing the Index of Objects | |

na.locf | Last Observation Carried Forward | |

na.approx | Replace NA by Interpolation | |

na.aggregate | Replace NA by Aggregation | |

yearqtr | An Index Class for Quarterly Data | |

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

read.zoo | Reading and Writing zoo Series | |

xblocks | Plot contiguous blocks along x axis. | |

rollmean | Rolling Means/Maximums/Medians | |

ORDER | Ordering Permutation | |

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

No Results! |

## Last month downloads

## Details

Date | 2011-08-22 |

License | GPL-2 |

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

Packaged | 2011-08-22 07:21:49 UTC; zeileis |

Repository | CRAN |

Date/Publication | 2011-08-22 07:30:18 |

depends | base (>= 2.10.0) , R (>= 2.10.0) , stats |

suggests | chron , coda , DAAG , fCalendar , fSeries , fts , its , strucchange , timeDate , timeSeries , tis , tseries , xts |

imports | graphics , grDevices , lattice (>= 0.18-1) , utils |

Contributors | Achim Zeileis, Felix Andrews, G. Grothendieck, Jeffrey Ryan |

#### Include our badge in your README

```
[![Rdoc](http://www.rdocumentation.org/badges/version/zoo)](http://www.rdocumentation.org/packages/zoo)
```