gjamFillMissingTimes: Fill out data for time series (state-space) gjam

In dbystrova/GJAM_clust: Generalized Joint Attribute Modeling

Description

Fills in predictor, response, and effort matrics for time series data where there are multiple multivariate time series. Time series gjam is still under development.

Usage

  gjamFillMissingTimes(xdata, ydata, edata, groups, times, 
                       sequences=NULL, fillNA=T, fillTimes=T)

Arguments

xdata	n by Q data.frame holding predictor variables
ydata	n by S matrix holding response variables
edata	n by S matrix holding effort
groups	column name in xdata holding group indicator
times	column name in xdata holding time indicator
sequences	column name in xdata holding sequence indicator
fillNA	fill new rows in ydata with NA; otherwise interpolated value
fillTimes	insert rows for missing times: integers values in column times

Details

Fills missing times in xdata, ydata, edata. If fillTimes = TRUE insert rows for missing times, including a times = 0, which serves as a prior mean for times = 1. groups must be uniquely defined. Within groups can be sequences, as when there is a time series for groups for each year.

Value

A list containing the following:

xdata	filled version of xdata
ydata	filled version of ydata
edata	filled version of edata
timeZero	row numbers in new data where each time series begins, with times = 0
timeLast	row numbers in new data where each time series ends
rowInserts	row numbers for all inserted rows
noEffort	rows for which effort is zero, except times = 0

Author(s)

James S Clark, [e-mail]

References

Clark, J.S., D. Nemergut, B. Seyednasrollah, P. Turner, and S. Zhang. 2016. Generalized joint attribute modeling for biodiversity analysis: Median-zero, multivariate, multifarious data. Ecological Monographs, 87, 34-56.

See Also

gjam for more on xdata, ydata, and effort.

A more detailed vignette is can be obtained with:

browseVignettes('gjam')

web site 'http://sites.nicholas.duke.edu/clarklab/code/'.

Examples

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dbystrova/GJAM_clust documentation built on Sept. 15, 2020, 5:46 p.m.