dextract.lab {emu}R Documentation

Extract a subset of data from a trackdata object

Description

Extract a subset of data from a trackdata object according to the label in the parallel label vector.

Usage

dextract.lab(dataset, labs, labtype=unique(labs))

Arguments

dataset A trackdata object returned from track.
labs A vector of labels parallel to trackdata$index, i.e. one for each segment in the trackdata.
labtype A vector of labels for which data is to be extracted.

Value

A trackdata object which is a subset of trackdata containing only the data for those labels in labtype. The result has the same components as the input trackdata:

data A vector or matrix of numerical data.
index A two column matrix giving the start and end indeces into the data vector for each segment.
ftime A two column matrix giving the start and end times for each segment.

See Also

track, dextract, get.time.element, frames.time


[Package emu version 4.0 Index]