findIntervals

tier

A regular expression for matching interval labels.
Default is <code>'*'</code> so that the search finds all intervals within
<code>[from, to]</code>.

pattern

A numeric, the earliest time from which to search for intervals.
Default is <code>-Inf</code> so that the search includes the start of <code>tier</code>.

from

A numeric, the latest time to which to search for intervals.
Default is <code>Inf</code> so that the search includes the end of <code>tier</code>.

A numeric, an exact time at which to find intervals.
Default is <code>numeric()</code> so that intervals are searched within
<code>[from, to]</code>.

optional arguments passed to <code>grep</code>.


Find intervals according to various search criteria.


The software application Praat can be used to annotate
waveform data (e.g., to mark intervals of interest or to label events).
(See <http://www.fon.hum.uva.nl/praat/> for more information about Praat.)
These annotations are stored in a Praat TextGrid object, which consists of
a number of interval tiers and point tiers. An interval tier consists of
sequential (i.e., not overlapping) labeled intervals. A point tier consists
of labeled events that have no duration. The 'textgRid' package provides
S4 classes, generics, and methods for accessing information that is stored
in Praat TextGrid objects.

findIntervals: Find intervals within an IntervalTier.

Description

Usage

Arguments

Value

Details

See Also