filter_acc

Filter the acceleration signal using a butterworth digital filter.

Functions to read, process and analyse accelerometer
data related to mechanical loading variables. This package is
developed and tested for use with raw accelerometer data from
triaxial 'ActiGraph' <https://theactigraph.com> accelerometers.

Lucas Veras

impactr

Mechanical Loading Prediction Through Accelerometer Data

filter_acc function

<dl><dt>data</dt>
<dd>An <code>impactr_data</code> object, as obtained with
read_acc().</dd>
<dt>order</dt>
<dd>The order of the filter. Defaults to 4.</dd>
<dt>cutoff</dt>
<dd>The filter cut-off frequency in Hz. Defaults to 20. For
low- and high-pass filters, must be a scalar. For band-pass and band-
stop, a vector of length two.</dd>
<dt>type</dt>
<dd>The type of filter. Defaults to "lowpass". Can be "lowpass",
"highpass", "bandpass" or "bandstop".</dd></dl>

Arguments

Filter the acceleration signal — filter_acc

<dl>

<dt>data</dt>
<dd>An <code>impactr_data</code> object, as obtained with
read_acc().</dd>


<dt>order</dt>
<dd>The order of the filter. Defaults to 4.</dd>


<dt>cutoff</dt>
<dd>The filter cut-off frequency in Hz. Defaults to 20. For
low- and high-pass filters, must be a scalar. For band-pass and band-
stop, a vector of length two.</dd>


<dt>type</dt>
<dd>The type of filter. Defaults to "lowpass". Can be "lowpass",
"highpass", "bandpass" or "bandstop".</dd>

</dl>

filter_acc: Filter the acceleration signal

Description

Usage

Value

Arguments

Details

References

Examples