ridgeSearch

Ridge regression to compute matrix adjancency matrix A such as A xt = xtpt1
the lambda parmeter is found by dichotomy such that A is stable
(all eigenvalues have a norm less than one)

Provides tools to compute the neural fragility matrix from intracranial electrocorticographic (iEEG) recordings, enabling the analysis of brain dynamics during seizures. The package implements the method described by Li et al. (2017) <doi:10.23919/ACC.2017.7963378> and includes functions for data preprocessing (`Epoch`), fragility computation (`calcAdjFrag`), and visualization.

Jiefei Wang

EZFragility

Compute Neural Fragility for Ictal iEEG Time Series

Anne-Cecile Lesage

Ioannis Malagaris

Oliver Zhou

Liliana Camarillo Rodriguez

Sean O'Leary

Patrick Karas

ridgeSearch function

<dl><dt>xt</dt>
<dd>matrix. iEEG time series for a given window,
with electrodes names as rows and time points as columns</dd>
<dt>xtp1</dt>
<dd>matrix. the iEEG time serie at the next time point,
with electrodes names as rows and time points as columns</dd>
<dt>lambda</dt>
<dd>Numeric Vector. A user supplied lambda sequence.</dd></dl>

Arguments

Ridge Regression for Electrode Readings — ridgeSearch

<dl>

<dt>xt</dt>
<dd>matrix. iEEG time series for a given window,
with electrodes names as rows and time points as columns</dd>


<dt>xtp1</dt>
<dd>matrix. the iEEG time serie at the next time point,
with electrodes names as rows and time points as columns</dd>


<dt>lambda</dt>
<dd>Numeric Vector. A user supplied lambda sequence.</dd>

</dl>

ridgeSearch: Ridge Regression for Electrode Readings

Description

Usage

Value

Arguments