Find the time and position of a data element.
Finds the time and position of a data element.
frames.time(dataset, datanum)
dataset |
A dataset returned by |
datanum |
An integer, an index into the |
The dataset returned from track or frames consists of a
matrix of data (the data component) and two index components
(index and ftime). The data for all segments is concatenated
together in $data. This function can be used to find out which
segment a particular row of $data corresponds to.
The segment number which contains the element datanum of
dataset$data.
track, frames
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