firls

Produce a linear phase filter from the weighted mean squared such that error
in the specified bands is minimized.

Implemented fast and memory-efficient Notch-filter,
Welch-periodogram, discrete wavelet spectrogram for minutes of
high-resolution signals, fast 3D convolution, image registration,
3D mesh manipulation; providing fundamental toolbox for intracranial
Electroencephalography (iEEG) pipelines.
Documentation and examples about 'RAVE' project are provided at
<https://rave.wiki>, and the paper by John F. Magnotti,
Zhengjia Wang, Michael S. Beauchamp (2020)
<doi:10.1016/j.neuroimage.2020.117341>; see 'citation("ravetools")' for
details.

Zhengjia Wang

ravetools

Signal and Image Processing Toolbox for Analyzing Intracranial
Electroencephalography Data

John Magnotti

Michael Beauchamp

Trustees of the University of Pennsylvania 

Karim Rahim

Thomas Possidente

Michael Prerau

Marcus Geelnard

Stefan Schlager

Visual Computing Lab, ISTI 

firls function

<dl><dt>N</dt>
<dd>filter order, must be even (if odd, then will be increased by one)</dd>
<dt>freq</dt>
<dd>vector of frequency points in the range from 0 to 1, where 1
corresponds to the <code>Nyquist</code> frequency.</dd>
<dt>A</dt>
<dd>vector of the same length as <code>freq</code> containing the desired
amplitude at each of the points specified in <code>freq</code>.</dd>
<dt>W</dt>
<dd>weighting function that contains one value for each band that
weights the mean squared error in that band. <code>W</code> must be half the
length of <code>freq</code>.</dd>
<dt>ftype</dt>
<dd>transformer type; default is <code>""</code>; alternatively,
<code>'h'</code> or <code>'hilbert'</code> for 'Hilbert' transformer.</dd></dl>

Arguments

Least-squares linear-phase FIR filter design — firls

<dl>

<dt>N</dt>
<dd>filter order, must be even (if odd, then will be increased by one)</dd>


<dt>freq</dt>
<dd>vector of frequency points in the range from 0 to 1, where 1
corresponds to the <code>Nyquist</code> frequency.</dd>


<dt>A</dt>
<dd>vector of the same length as <code>freq</code> containing the desired
amplitude at each of the points specified in <code>freq</code>.</dd>


<dt>W</dt>
<dd>weighting function that contains one value for each band that
weights the mean squared error in that band. <code>W</code> must be half the
length of <code>freq</code>.</dd>


<dt>ftype</dt>
<dd>transformer type; default is <code>""</code>; alternatively,
<code>'h'</code> or <code>'hilbert'</code> for 'Hilbert' transformer.</dd>

</dl>

Least-squares linear-phase <code>FIR</code> filter design

firls: Least-squares linear-phase `FIR` filter design

Description

Usage

Value

Arguments