emuR: buildtrack – R documentation

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buildtrack

Build trackdata objects from the output of by()

Description

buildtrack() converts a list that is the output of by.trackdata() into a trackdata object if the list components are matrices whose rows are successive values in time.

Usage

buildtrack(mylist, ftime = NULL, trackname = "")

Arguments

`mylist`	a list that ist output from by()
`ftime`	ftime
`trackname`	name of track data object

Details

The default of by.trackdata() is to return a list. If each element of the list consists of a matrix whose rows are values occurring at the times given by the row dimension names of the matrix, then buildtrack() can be used to convert the list into a trackdata object. If the times are not given in the row dimension names, then these can be supplied as an additional argument to buildtrack()

Author(s)

Jonathan Harrington

Examples

#vowlax.fdat is a track data objects of formant of the vowlax segment list
   #calculate the difference between adjacent formant values
   p = by(vowlax.fdat[1,2],INDICES=NULL, diff)
   
   p
   
   
   #now build a track data object out of these values
   m = buildtrack(p)
   
   m

emuR

Main Package of the EMU Speech Database Management System

v2.2.0

GPL (>= 2)

Authors

Raphael Winkelmann [aut, cre], Klaus Jaensch [aut, ctb], Steve Cassidy [aut, ctb], Jonathan Harrington [aut, ctb]

Initial release