extract

This function is used to extract a sub-sample of data from a vector or matrix.

High-resolution movement-sensor tags typically include accelerometers
to measure body posture and sudden movements or changes in speed,
magnetometers to measure direction of travel, and pressure sensors
to measure dive depth in aquatic or marine animals. The sensors in these tags usually sample many times per second. Some tags include sensors for speed, turning rate (gyroscopes), and sound. This package provides software tools to facilitate calibration, processing, and analysis of such data. Tools are provided for: data import/export;
calibration (from raw data to calibrated data in scientific units);
visualization (for example, multi-panel time-series plots);
data processing (such as event detection, calculation of derived metrics like jerk and
dynamic acceleration, dive detection, and dive parameter calculation); and statistical analysis (for example, track reconstruction, a rotation test, and Mahalanobis distance analysis).

Stacy DeRuiter

tagtools

Work with Data from High-Resolution Biologging Tags

Mark Johnson

David Sweeney

Ye Joo McNamara-Oh

Samuel Fynewever

(Oghenkevwe) Racheal Tejevbo

Tiago Marques

Yuqian Wang

(Oghenesuvwe) Su Ogedegbe

extract function

<dl><dt>x</dt>
<dd>A vector or matrix of measurements. If x is a matrix, each column is treated as a separate measurement vector.</dd>
<dt>sampling_rate</dt>
<dd>the sampling rate in Hz of the data in x.</dd>
<dt>tst</dt>
<dd>Defines the start time in seconds of the interval to be extracted from x.</dd>
<dt>ted</dt>
<dd>Defines the end time in seconds of the interval to be extracted from x.</dd></dl>

Arguments

Extract a sub-sample of data — extract

<dl>

<dt>x</dt>
<dd>A vector or matrix of measurements. If x is a matrix, each column is treated as a separate measurement vector.</dd>


<dt>sampling_rate</dt>
<dd>the sampling rate in Hz of the data in x.</dd>


<dt>tst</dt>
<dd>Defines the start time in seconds of the interval to be extracted from x.</dd>


<dt>ted</dt>
<dd>Defines the end time in seconds of the interval to be extracted from x.</dd>

</dl>

Extract a sub-sample of data

extract: Extract a sub-sample of data

Description

Usage

Value

Arguments

Examples