compute_LL_std

Compute the expected log posterior for EM Standard Template ICA

internal

Implements the template ICA (independent components analysis) model
proposed in Mejia et al. (2020) <doi:10.1080/01621459.2019.1679638> and the
spatial template ICA model proposed in proposed in Mejia et al. (2022)
<doi:10.1080/10618600.2022.2104289>. Both models estimate subject-level
brain as deviations from known population-level networks, which are
estimated using standard ICA algorithms. Both models employ an
expectation-maximization algorithm for estimation of the latent brain
networks and unknown model parameters. Includes direct support for 'CIFTI',
'GIFTI', and 'NIFTI' neuroimaging file formats.

Amanda Mejia

templateICAr

Estimate Brain Networks and Connectivity with ICA and Empirical
Priors

Damon Pham

Daniel Spencer

Mary Beth Nebel

compute_LL_std function

<dl><dt>theta</dt>
<dd>The current parameter estimates</dd>
<dt>template_mean, template_var</dt>
<dd>The template</dd>
<dt>C_diag</dt>
<dd>The C matrix</dd>
<dt>BOLD</dt>
<dd>(\(V \times T\) matrix) preprocessed fMRI data</dd>
<dt>verbose</dt>
<dd>Print LL components?</dd></dl>

Arguments

Compute LL for EM Template ICA — compute_LL_std

<dl>

<dt>theta</dt>
<dd>The current parameter estimates</dd>


<dt>template_mean, template_var</dt>
<dd>The template</dd>


<dt>C_diag</dt>
<dd>The C matrix</dd>


<dt>BOLD</dt>
<dd>(\(V \times T\) matrix) preprocessed fMRI data</dd>


<dt>verbose</dt>
<dd>Print LL components?</dd>

</dl>

compute_LL_std: Compute LL for EM Template ICA

Description

Usage

Value

Arguments